remove ubuntu 20.04 from test matrix (#63)

* remove ubuntu 20.04 from test matrix

* fixup!

Author: brokenpip3

.github/dependabot.yaml

@@ -6,3 +6,7 @@ updates:
       interval: "daily"
     target-branch: main
     assignees: ["brokenpip3"]
+    groups:
+      actions:
+        patterns:
+          - "*"

.github/workflows/test-local-action.yaml

@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         version: ["1.7.0", "1.9.0", "1.11.0", "latest"]
-        os: [ ubuntu-20.04, ubuntu-22.04, ubuntu-latest, windows-2022, windows-latest, macos-14, macos-latest ]
+        os: [ ubuntu-22.04, ubuntu-latest, windows-2022, windows-latest, macos-14, macos-latest ]
     runs-on: ${{ matrix.os }}
     env:
       TERM: xterm
@@ -81,7 +81,7 @@ jobs:
       fail-fast: false
       matrix:
         version: ["1.7.0", "1.9.0", "1.11.0", "latest"]
-        os: [ ubuntu-20.04, ubuntu-22.04, ubuntu-latest, windows-2022, windows-latest, macos-14, macos-latest ]
+        os: [ ubuntu-22.04, ubuntu-latest, windows-2022, windows-latest, macos-14, macos-latest ]
     runs-on: ${{ matrix.os }}
     env:
       TERM: xterm

.github/workflows/test-public-action.yaml

@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         version: ["1.7.0", "1.9.0", "1.11.0", "latest"]
-        os: [ ubuntu-20.04, ubuntu-22.04, ubuntu-latest, windows-2022, windows-latest, macos-14, macos-latest ]
+        os: [ ubuntu-22.04, ubuntu-latest, windows-2022, windows-latest, macos-14, macos-latest ]
     runs-on: ${{ matrix.os }}
     env:
       BATS_LIB_PATH: "/usr/lib"
@@ -82,7 +82,7 @@ jobs:
       fail-fast: false
       matrix:
         version: ["1.7.0", "1.9.0", "1.11.0", "latest"]
-        os: [ ubuntu-20.04, ubuntu-22.04, ubuntu-latest, windows-2022, windows-latest, macos-14, macos-latest ]
+        os: [ ubuntu-22.04, ubuntu-latest, windows-2022, windows-latest, macos-14, macos-latest ]
     runs-on: ${{ matrix.os }}
     env:
       TERM: xterm