Simplify Gitea Actions workflow

.gitea/workflows/deploy.yml

@@ -8,27 +8,18 @@ on:
 jobs:
   build-and-deploy:
     runs-on: ubuntu-latest
-    container:
-      image: openjdk:21
-      options: -v /var/run/docker.sock:/var/run/docker.sock
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Setup Maven cache
-        uses: actions/cache@v4
-        with:
-          path: ~/.m2/repository
-          key: maven-${{ hashFiles('pom.xml') }}
-          restore-keys: maven-
-
       - name: Build with Maven
-        run: mvn clean install -Dmaven.test.skip=true
+        run: |
+          apt-get update -qq && apt-get install -y -qq maven 2>/dev/null || true
+          mvn clean install -Dmaven.test.skip=true
 
       - name: Build Docker image
-        run: |
-          docker build -t auth-backend:latest -t auth-backend:${{ github.sha }} .
+        run: docker build -t auth-backend:latest .
 
       - name: Deploy
         run: |