ci(workflow): update Docker-related actions for pushes only

- Modified Docker login and buildx push to only execute on push events, excluding Dependabot actions.
- Ensures smoother CI by preventing unnecessary Docker operations for dependency updates.

Author: winromulus

.github/workflows/main.yaml

@@ -55,6 +55,7 @@ jobs:
           path: .artifacts/kubectl
 
       - name: tools - docker - login
+        if: github.event_name == 'push' && github.actor != 'dependabot[bot]'
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.ES_DOCKERHUB_USERNAME }}
@@ -64,7 +65,6 @@ jobs:
         run: |
           docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
 
-
       - name: docker - setup - buildx
         uses: docker/setup-buildx-action@v3
         with:
@@ -75,7 +75,7 @@ jobs:
         with:
           context: src/
           file: src/ES.Kubernetes.Reflector/Dockerfile
-          push: true
+          push: ${{ github.event_name == 'push' && github.actor != 'dependabot[bot]' }}
           provenance: false
           platforms: linux/amd64,linux/arm/v7,linux/arm64
           tags: ${{ env.imageRepository }}:build-${{ env.version }}