cannot test gpu code in matrix as is

Author: lgray

.github/workflows/ci.yml

@@ -75,7 +75,7 @@ jobs:
         uv pip install --system xgboost
         uv pip install --system 'tritonclient[grpc,http]!=2.41.0'
         # install checked out coffea
-        uv pip install --system -q '.[dev,parsl,dask,spark,gpu]' --upgrade
+        uv pip install --system -q '.[dev,parsl,dask,spark]' --upgrade
         uv pip list --system
         java -version
     - name: Install dependencies (MacOS)