Add login condition check

Author: cjreed121

.github/workflows/docker-build-push.yml

@@ -71,6 +71,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
       - name: Docker Hub login
         uses: docker/login-action@releases/v1
+        if: ${{ inputs.push }}
         with:
           username: ${{ inputs.docker_username }}
           password: ${{ secrets.docker_password }}