Update GitHub action to use Ubuntu 22.04 (#57)

* Update GitHub action to use Ubuntu 22.04



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For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/OpenForgeProject/ddev-woodoo-buildtools-magento?shareId=XXXX-XXXX-XXXX-XXXX).

* Update `runs-on` from `ubuntu-20.04` to `ubuntu-22.04` in `tests.yml`

* Update GitHub Actions workflow and changelog

* **GitHub Actions workflow**
  - Update `runs-on` from `ubuntu-20.04` to `ubuntu-22.04`
  - Remove `gautamkrishnar/keepalive-workflow@v1` step

* **Changelog**
  - Add entry for updating GitHub action test to use `ubuntu-22.04`
  - Add entry for removing `gautamkrishnar/keepalive-workflow@v1` step

Author: dermatz

.github/workflows/tests.yml

@@ -38,7 +38,7 @@ jobs:
             #        ddev_version: [stable, edge, HEAD, PR]
             fail-fast: false
 
-        runs-on: ubuntu-20.04
+        runs-on: ubuntu-22.04
 
         steps:
             - uses: actions/checkout@v3
@@ -81,8 +81,3 @@ jobs:
 
             - name: tests
               run: bats tests
-
-            # keepalive-workflow adds a dummy commit if there's no other action here, keeps
-            # GitHub from turning off tests after 60 days
-            - uses: gautamkrishnar/keepalive-workflow@v1
-              if: matrix.ddev_version == 'stable'

CHANGELOG.md

@@ -7,6 +7,8 @@ All notable changes to this project will be documented in this file.
 ## UNRELEASED Changes
 
 - change: change support message
+- update: GitHub action test to use `ubuntu-22.04`
+- remove: `gautamkrishnar/keepalive-workflow@v1` step
 
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