Update ci.yaml

Author: bgruening

.github/workflows/ci.yaml

@@ -18,7 +18,7 @@ jobs:
       run: |
         #python -m pip install git+https://git@github.com/galaxyproject/galaxy.git@dev#subdirectory=packages/util
         #python -m pip install git+https://git@github.com/galaxyproject/galaxy.git@dev#subdirectory=packages/tool_util
-        python -m pip install git+https://git@github.com/bgruening/galaxy.git@mulled_quay_enhancements#subdirectory=packages/tool_util
+        python -m pip install "git+https://github.com/bgruening/galaxy.git@mulled_quay_enhancements#subdirectory=packages/tool_util"
         #python -m pip install galaxy-tool-util
     - run: docker --version
     - run: docker info