chore(deps): bump the actions group across 1 directory with 6 updates

Bumps the actions group with 6 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [actions/checkout](https://github.com/actions/checkout) | `4` | `6` |
| [actions/setup-python](https://github.com/actions/setup-python) | `5` | `6` |
| [actions/cache](https://github.com/actions/cache) | `4` | `5` |
| [OpenTTD/actions/.github/workflows/rw-entry-preview-docker-nomad.yml](https://github.com/openttd/actions) | `5` | `6` |
| [OpenTTD/actions/.github/workflows/rw-entry-release-docker-nomad.yml](https://github.com/openttd/actions) | `5` | `6` |
| [OpenTTD/actions/.github/workflows/rw-entry-testing-docker-py.yml](https://github.com/openttd/actions) | `5` | `6` |



Updates `actions/checkout` from 4 to 6
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v6)

Updates `actions/setup-python` from 5 to 6
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v5...v6)

Updates `actions/cache` from 4 to 5
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4...v5)

Updates `OpenTTD/actions/.github/workflows/rw-entry-preview-docker-nomad.yml` from 5 to 6
- [Release notes](https://github.com/openttd/actions/releases)
- [Commits](OpenTTD/actions@v5...v6)

Updates `OpenTTD/actions/.github/workflows/rw-entry-release-docker-nomad.yml` from 5 to 6
- [Release notes](https://github.com/openttd/actions/releases)
- [Commits](OpenTTD/actions@v5...v6)

Updates `OpenTTD/actions/.github/workflows/rw-entry-testing-docker-py.yml` from 5 to 6
- [Release notes](https://github.com/openttd/actions/releases)
- [Commits](OpenTTD/actions@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/setup-python
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: OpenTTD/actions/.github/workflows/rw-entry-preview-docker-nomad.yml
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: OpenTTD/actions/.github/workflows/rw-entry-release-docker-nomad.yml
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: OpenTTD/actions/.github/workflows/rw-entry-testing-docker-py.yml
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/end-to-end.yml

@@ -32,18 +32,18 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Set up Python 3.11
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: 3.11
         cache: 'pip'
         cache-dependency-path: |
           e2e/requirements.base
           requirements.txt
 
-    - uses: actions/cache@v4
+    - uses: actions/cache@v5
       name: Cache Playwright
       id: playwright-cache
       with:

.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@v5
+    uses: OpenTTD/actions/.github/workflows/rw-entry-preview-docker-nomad.yml@v6
     secrets:
       NOMAD_SERVICE_PREVIEW_KEY: ${{ secrets.NOMAD_SERVICE_PREVIEW_KEY }}
     with:

.github/workflows/release.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   release:
     name: Release
-    uses: OpenTTD/actions/.github/workflows/rw-entry-release-docker-nomad.yml@v5
+    uses: OpenTTD/actions/.github/workflows/rw-entry-release-docker-nomad.yml@v6
     secrets:
       NOMAD_SERVICE_PROD_KEY: ${{ secrets.NOMAD_SERVICE_PROD_KEY }}
     with:

.github/workflows/testing.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   testing:
     name: Testing
-    uses: OpenTTD/actions/.github/workflows/rw-entry-testing-docker-py.yml@v5
+    uses: OpenTTD/actions/.github/workflows/rw-entry-testing-docker-py.yml@v6
     with:
       python-path: truewiki e2e
       python-version: 3.11