Fix main.yml: syntax errors, add mysql service container, add latest Docker tag

Co-authored-by: delicatacurtis <247246500+delicatacurtis@users.noreply.github.com>

Author: Copilot

.github/workflows/main.yml

@@ -17,29 +17,42 @@ jobs:
   docker:
     if: github.event_name == 'push'
     runs-on: ubuntu-latest
+
+    services:
+      mysql:
+        image: mysql:8.0
+        env:
+          MYSQL_ROOT_PASSWORD: root
+          MYSQL_DATABASE: liberu
+        ports:
+          - 3306:3306
+        options: >-
+          --health-cmd="mysqladmin ping"
+          --health-interval=10s
+          --health-timeout=5s
+          --health-retries=3
+
     steps:
-      -
-        name: Checkout
+      - name: Checkout
         uses: actions/checkout@v4
 
-      -
-        name: Login to Docker Hub
+      - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
-      -
-        name: Extract metadata (tags, labels) for Docker
+      - name: Extract metadata (tags, labels) for Docker
         id: meta
         uses: docker/metadata-action@v5
         with:
           images: liberu/genealogy
+          flavor: |
+            latest=true
 
-      -
-        # Setting up Docker Buildx with docker-container driver is required
-        # at the moment to be able to use a subdirectory with Git context
-        name: Set up Docker Buildx
+      # Setting up Docker Buildx with docker-container driver is required
+      # at the moment to be able to use a subdirectory with Git context
+      - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
       - name: Cache Docker layers