ci: add workflow to create core tags automatically

Fixes: ansible#66

.github/workflows/tag.yml

@@ -0,0 +1,32 @@
+---
+name: Sync tags with ansible-core releases
+
+"on":
+  workflow_dispatch:
+  schedule:
+    - cron: "0 * * * *"  # Hourly
+
+jobs:
+  tag:
+    runs-on: "ubuntu-latest"
+    permissions:
+      contents: write
+    steps:
+      - name: Check out us
+        uses: actions/checkout@v4
+        with:
+          path: ansible-documentation
+          fetch-depth: 0
+      - name: Check out core
+        uses: actions/checkout@v4
+        with:
+          repository: ansible/ansible
+          path: ansible
+          fetch-depth: 0
+      - name: Setup nox
+        uses: wntrblm/nox@2024.04.15
+        with:
+          python-versions: "3.12"
+      - name: Run tag script
+        run: nox -s tag
+        working-directory: ansible-documentation