Login to dockerhub in workflow

Author: nithyanatarajan

.github/workflows/release.yml

@@ -19,6 +19,12 @@ jobs:
         with:
           go-version: 1.16
 
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: '${{ secrets.DOCKERHUB_USERNAME }}'
+          password: '${{ secrets.DOCKERHUB_PASSWORD }}'
+
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v2
         with: