GitHub: Added update-readme

.github/workflows/update-readme.yaml

@@ -0,0 +1,45 @@
+name: Update README with Docker Images
+
+on:
+  workflow_dispatch:      # Allow manual triggering
+  workflow_run:           # Trigger from images
+    workflows: ["Create Images"]
+    types: [completed]
+  push:
+    paths:
+      - .github/workflows/update-readme.yaml
+      - .gitea/workflows/scripts/update-readme.py
+      
+jobs:
+  update-readme:
+    runs-on: ubuntu-latest
+    environment:
+      name: Docker Hub
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+          
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install requests
+
+      - name: Generate Docker Images Table
+        run: python .gitea/workflows/scripts/update-readme.py
+        env:
+          DOCKER_USERNAME: ${{ vars.DOCKERHUB_USERNAME }}
+          DOCKER_PASSWORD: ${{ secrets.DOCKERHUB_TOKEN }}
+          IMAGE: "${{ vars.DOCKERHUB_USERNAME }}/unity-runner"
+
+      - name: Commit changes if README was updated
+        run: |
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git config --local user.name "github-actions[bot]"
+          git add README.md
+          git diff --quiet && git diff --staged --quiet || (git commit -m "Update Docker images table in README" && git push)