feat: publish docker image to github packages

.github/workflows/ci.yml

@@ -30,14 +30,15 @@ jobs:
         with:
           java-version: '17'
           distribution: 'temurin'
-      - name: Login to Docker Hub
+      - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
       - name: Build and push Docker image
         uses: docker/build-push-action@v5
         with:
           context: .
           push: true
-          tags: pischule/memevizor:latest
+          tags: ghcr.io/${{ github.repository_owner }}/memevizor:latest