Upgrade: Bump the actions group with 2 updates

Bumps the actions group with 2 updates: [actions/checkout](https://github.com/actions/checkout) and [OpenTTD/actions](https://github.com/openttd/actions).


Updates `actions/checkout` from 3 to 4
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

Updates `OpenTTD/actions` from 2 to 5
- [Release notes](https://github.com/openttd/actions/releases)
- [Commits](OpenTTD/actions@v2...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: OpenTTD/actions
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

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

.github/workflows/commit-checker.yml

@@ -10,12 +10,12 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 4
 
     - name: Get pull-request commits
-      uses: OpenTTD/actions/checkout-pull-request@v2
+      uses: OpenTTD/actions/checkout-pull-request@v5
 
     - name: Check commits
       uses: OpenTTD/OpenTTD-git-hooks@main

.github/workflows/preview.yml

@@ -12,7 +12,7 @@ jobs:
   preview:
     if: ${{ (github.event.action == 'labeled' && github.event.label.name == 'preview') || (github.event.action != 'labeled' && contains(github.event.pull_request.labels.*.name, 'preview')) }}
     name: Preview
-    uses: OpenTTD/actions/.github/workflows/rw-entry-preview-docker-nomad.yml@v4
+    uses: OpenTTD/actions/.github/workflows/rw-entry-preview-docker-nomad.yml@v5
     secrets: inherit
     with:
       service: dorpsgek-preview

.github/workflows/release.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   release:
     name: Release
-    uses: OpenTTD/actions/.github/workflows/rw-entry-release-docker-nomad.yml@v4
+    uses: OpenTTD/actions/.github/workflows/rw-entry-release-docker-nomad.yml@v5
     secrets: inherit
     with:
       service: dorpsgek-prod

.github/workflows/testing.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   testing:
     name: Testing
-    uses: OpenTTD/actions/.github/workflows/rw-entry-testing-docker-py.yml@v4
+    uses: OpenTTD/actions/.github/workflows/rw-entry-testing-docker-py.yml@v5
     with:
       python-path: dorpsgek plugins
       python-version: 3.8