Onboard automations (#88)

Co-authored-by: plengauer <[email protected]>

.github/workflows/autoversion.yaml

@@ -0,0 +1,15 @@
+name: Autoversion
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * 1' # TODO adjust schedule
+
+jobs:
+  bump:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: plengauer/[email protected]
+        with:
+          github_token: ${{ secrets.ACTIONS_GITHUB_TOKEN }}
+          openai_token: ${{ secrets.OPENAI_TOKEN }} # TODO remove if no token is available