remove debugging on test-openmm-rc

.github/workflows/test-openmm-rc.yml

@@ -4,8 +4,8 @@ name: "Test OpenMM Release Candidate"
 on:
   workflow_dispatch:
   # use this for debugging
-  pull_request:
-    branch: master
+  #pull_request:
+    #branch: master
 
 defaults:
   run:
@@ -25,6 +25,8 @@ jobs:
           auto-update-conda: true
       - name: "Install requirements"
         run: |
+          # we'd rather use the default Python version, but for now need to
+          # pin to 3.9 (see openpathsampling/openpathsampling#1093)
           #CONDA_PY=$(python -c "import sys; print('.'.join(str(s) for s in sys.version_info[:2]))")
           export CONDA_PY=3.9
           echo "Python version: ${CONDA_PY}"