build(ci): relocate Docker registry login actions

- Move Docker registry login actions to after the build process
- Remove unnecessary indentation in workflow file

.github/workflows/gradle-build.yml

@@ -27,22 +27,6 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
-      - name: Log into registry ${{ env.GITHUB_REGISTRY }}
-        if: github.event_name != 'pull_request'
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.GITHUB_REGISTRY }}
-          username: ${{ github.actor }}
-          password: ${{ secrets.PAGK_TOKEN }}
-
-      - name: Log into registry docker.io
-        if: github.event_name != 'pull_request'
-        uses: docker/login-action@v3
-        with:
-          registry: ${{env.DOCKER_REGISTRY}}
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-
       - name: Set up JDK 21 for x64
         uses: actions/setup-java@v4
         with:
@@ -58,6 +42,22 @@ jobs:
           chmod +x ./gradlew
           ./gradlew bootBuildImage
 
+      - name: Log into registry ${{ env.GITHUB_REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.GITHUB_REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.PAGK_TOKEN }}
+
+      - name: Log into registry ${{ env.DOCKER_REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{env.DOCKER_REGISTRY}}
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
       - name: Extract platform metadata (tags, labels) for Docker
         id: meta
         uses: docker/metadata-action@v5