ci: fix docker push syntax

Author: williarin

.github/workflows/build-deploy.yml

@@ -75,8 +75,4 @@ jobs:
             -   name: Push Docker image
                 run: |
                     echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
-                    docker push \
-                        williarin/secure-mysql-backups:latest \
-                        williarin/secure-mysql-backups:$CI_REF_NAME \
-                        williarin/secure-mysql-backups:${{ env.TAG_MAJOR }} \
-                        williarin/secure-mysql-backups:${{ env.TAG_MINOR }}
+                    docker push --all-tags williarin/secure-mysql-backups