[TASK] Migrate backport and documentation workflows to shared reusable workflows

Author: CybotTM

.github/workflows/backport.yml

@@ -2,21 +2,16 @@ name: Backport
 
 on:
   pull_request_target:
-    types: [closed, labeled]
+    types:
+      - closed
+      - labeled
+
+permissions:
+  contents: write
+  pull-requests: write
 
 jobs:
   backport:
-    if: github.event.pull_request.merged == true
-    runs-on: ubuntu-latest
-
-    permissions:
-      contents: write
-      pull-requests: write
-
-    steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v 6.0.2
-
-      - name: Backport
-        uses: korthout/backport-action@4aaf0e03a94ff0a619c9a511b61aeb42adea5b02 # v4.2.0
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
+    uses: TYPO3-Documentation/.github/.github/workflows/reusable-backport.yml@main
+    with:
+      label_pattern: "^backport (.+)$"

.github/workflows/documentation.yml

@@ -1,17 +1,11 @@
 name: Test documentation
 
-on: [ push, pull_request ]
+on:
+  push:
+  pull_request:
 
 jobs:
-  tests:
-    name: Render documentation
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
-
-      - name: Test if the documentation will render without warnings
-        run: |
-          mkdir -p Documentation-GENERATED-temp \
-          && docker run --rm --pull always -v $(pwd):/project \
-             ghcr.io/typo3-documentation/render-guides:latest --config=Documentation --no-progress --minimal-test
+  render:
+    uses: TYPO3-Documentation/.github/.github/workflows/reusable-test-documentation.yml@main
+    with:
+      render-flags: '--no-progress --minimal-test'