[release-1.18][gomod]: Bump the minor group across 1 directory with 4 updates

Bumps the minor group with 4 updates in the / directory: [github.com/cloudevents/sdk-go/v2](https://github.com/cloudevents/sdk-go), [github.com/fatih/color](https://github.com/fatih/color), [github.com/spf13/cobra](https://github.com/spf13/cobra) and [github.com/spf13/viper](https://github.com/spf13/viper).


Updates `github.com/cloudevents/sdk-go/v2` from 2.15.2 to 2.16.0
- [Release notes](https://github.com/cloudevents/sdk-go/releases)
- [Commits](cloudevents/sdk-go@v2.15.2...v2.16.0)

Updates `github.com/fatih/color` from 1.16.0 to 1.18.0
- [Release notes](https://github.com/fatih/color/releases)
- [Commits](fatih/color@v1.16.0...v1.18.0)

Updates `github.com/spf13/cobra` from 1.8.1 to 1.9.1
- [Release notes](https://github.com/spf13/cobra/releases)
- [Commits](spf13/cobra@v1.8.1...v1.9.1)

Updates `github.com/spf13/viper` from 1.18.2 to 1.20.1
- [Release notes](https://github.com/spf13/viper/releases)
- [Commits](spf13/viper@v1.18.2...v1.20.1)

---
updated-dependencies:
- dependency-name: github.com/cloudevents/sdk-go/v2
  dependency-version: 2.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor
- dependency-name: github.com/fatih/color
  dependency-version: 1.18.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor
- dependency-name: github.com/spf13/cobra
  dependency-version: 1.9.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor
- dependency-name: github.com/spf13/viper
  dependency-version: 1.20.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

go.mod

@@ -3,18 +3,18 @@ module knative.dev/kn-plugin-event
 go 1.24.0
 
 require (
-	github.com/cloudevents/sdk-go/v2 v2.15.2
-	github.com/fatih/color v1.16.0
+	github.com/cloudevents/sdk-go/v2 v2.16.0
+	github.com/fatih/color v1.18.0
 	github.com/ghodss/yaml v1.0.0
 	github.com/gobuffalo/flect v1.0.3
 	github.com/google/go-containerregistry v0.20.3
 	github.com/google/uuid v1.6.0
 	github.com/kelseyhightower/envconfig v1.4.0
 	github.com/phayes/freeport v0.0.0-20220201140144-74d24b5ae9f5
 	github.com/pkg/errors v0.9.1
-	github.com/spf13/cobra v1.8.1
+	github.com/spf13/cobra v1.9.1
 	github.com/spf13/pflag v1.0.6
-	github.com/spf13/viper v1.18.2
+	github.com/spf13/viper v1.20.1
 	github.com/stretchr/testify v1.10.0
 	github.com/thediveo/enumflag v0.10.0
 	github.com/wavesoftware/go-commandline v1.3.0
@@ -61,7 +61,7 @@ require (
 	github.com/erikgeiser/promptkit v0.9.0 // indirect
 	github.com/evanphx/json-patch v5.9.0+incompatible // indirect
 	github.com/evanphx/json-patch/v5 v5.9.11 // indirect
-	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/fsnotify/fsnotify v1.8.0 // indirect
 	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
 	github.com/go-errors/errors v1.4.2 // indirect
 	github.com/go-kit/log v0.2.1 // indirect
@@ -70,6 +70,7 @@ require (
 	github.com/go-openapi/jsonpointer v0.21.0 // indirect
 	github.com/go-openapi/jsonreference v0.21.0 // indirect
 	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
@@ -81,22 +82,19 @@ require (
 	github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1 // indirect
 	github.com/hashicorp/golang-lru v1.0.2 // indirect
-	github.com/hashicorp/hcl v1.0.1-vault-5 // indirect
 	github.com/imdario/mergo v0.3.16 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.17.11 // indirect
 	github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
-	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mailru/easyjson v0.9.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-localereader v0.0.2-0.20220822084749-2491eb6c1c75 // indirect
 	github.com/mattn/go-runewidth v0.0.15 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
-	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/moby/term v0.5.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
@@ -110,7 +108,7 @@ require (
 	github.com/onsi/ginkgo v1.16.5 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/openzipkin/zipkin-go v0.4.3 // indirect
-	github.com/pelletier/go-toml/v2 v2.2.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.3 // indirect
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/prometheus/client_golang v1.20.5 // indirect
@@ -122,11 +120,10 @@ require (
 	github.com/rickb777/plural v1.4.1 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/robfig/cron/v3 v3.0.1 // indirect
-	github.com/sagikazarmark/locafero v0.4.0 // indirect
-	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/sagikazarmark/locafero v0.7.0 // indirect
 	github.com/sourcegraph/conc v0.3.0 // indirect
-	github.com/spf13/afero v1.11.0 // indirect
-	github.com/spf13/cast v1.6.0 // indirect
+	github.com/spf13/afero v1.12.0 // indirect
+	github.com/spf13/cast v1.7.1 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/wavesoftware/go-retcode v1.0.0 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
@@ -135,7 +132,6 @@ require (
 	go.starlark.net v0.0.0-20230525235612-a134d8f9ddca // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/exp v0.0.0-20250210185358-939b2ce775ac // indirect
 	golang.org/x/net v0.39.0 // indirect
 	golang.org/x/oauth2 v0.26.0 // indirect
 	golang.org/x/sync v0.13.0 // indirect
@@ -144,14 +140,13 @@ require (
 	golang.org/x/text v0.24.0 // indirect
 	golang.org/x/time v0.10.0 // indirect
 	gomodules.xyz/jsonpatch/v2 v2.5.0 // indirect
-	google.golang.org/api v0.198.0 // indirect
+	google.golang.org/api v0.215.0 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20250207221924-e9438ea467c6 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250207221924-e9438ea467c6 // indirect
 	google.golang.org/grpc v1.71.1 // indirect
 	google.golang.org/protobuf v1.36.6 // indirect
 	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
-	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	k8s.io/apiextensions-apiserver v0.32.1 // indirect
 	k8s.io/apiserver v0.32.1 // indirect