docs: invalid gateway api spec link

[ronething]

Current State

ref:

apisix-ingress-controller/docs/en/latest/concepts/gateway-api.md

Line 62 in 1afb9ac

For a complete list of configuration options, refer to the [Gateway API Reference](https://gateway-api.sigs.k8s.io/reference/spec/). Be aware that some fields are not supported, or partially supported.

https://github.com/kubernetes-sigs/gateway-api/pull/4190/files#diff-e3e3fb94519e304f0297ce58a13bfd7b92548d585781b63b2871836f726f4a56

Due to the changes in this PR, the link at https://gateway-api.sigs.k8s.io/reference/spec/ is inaccessible, and the corresponding link needs to be modified.

Desired State

Modify to the correct link.

[kayx23]

https://gateway-api.sigs.k8s.io/reference/1.3/spec/ or https://gateway-api.sigs.k8s.io/reference/1.4/spec/?

[ronething]

gateway-api.sigs.k8s.io/reference/1.3/spec or gateway-api.sigs.k8s.io/reference/1.4/spec?

@kayx23 We currently support gateway api version v1.3, but i think we can also directly use main/spec(https://gateway-api.sigs.k8s.io/reference/main/spec/), as we are just providing an official reference link.

[kayx23]

We currently support gateway api version v1.3

@ronething Is this information available anywhere to users? Not sure what implications there may be if someone looks at a different version of the docs. Linking to 1.3 feels more sensible to me.

[ronething]

Is this information available anywhere to users?

Currently, there is no clear indication in this repository(only in Makefile/go.mod).

Linking to 1.3 feels more sensible to me.

OK, we can specify a clear 1.3 version, and we can make modifications in the future if needed.

apisix-ingress-controller/Makefile

Lines 52 to 53 in e3c2f81

	# gateway-api
	GATEAY_API_VERSION ?= v1.3.0