fix: add docker login for push images (#17)

Author: xoanmm

.github/workflows/release.yaml

@@ -23,6 +23,12 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
 
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v1
         with: