Created a first draft of this action. (#14)

Reviewed-on: #14
Co-authored-by: Philipp Horstenkamp <philipp@horstenkamp.de>
Co-committed-by: Philipp Horstenkamp <philipp@horstenkamp.de>

.gitea/workflows/maintenance.yaml

@@ -0,0 +1,37 @@
+name: Auto Maintenance Cycle
+
+on:
+  schedule:
+  - cron: '* 1 * * 0'
+  push:
+
+jobs:
+  auto-update:
+    name: pre-commit Autoupdate
+    runs-on: pi64
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-python@v4
+
+    - run: pip install pre-commit
+      shell: bash
+    - run: pre-commit autoupdate
+      shell: bash
+    - name: Commit
+      uses: stefanzweifel/git-auto-commit-action@v5
+      with:
+        commit_message: 'chore: update pre-commit hooks'
+        branch: update/pre-commit-hooks
+        push_options: --force
+        create_branch: true
+    - name: Generate Date
+      run: echo "CURRENT_DATE=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
+    - name: Create an PR action
+      uses: ./
+      with:
+        token: ${{ secrets.REPO_TOKEN }}
+        branch: update/pre-commit-hooks
+        title: Updates to the pre-commit action created at ${{ env.CURRENT_DATE }}
+        body: Update to the pre-commit action.
+        assignees: Philipp
+        reviewers: Philipp