update CI conda env yaml

.github/resources/conda-setup.yml

@@ -4,25 +4,21 @@ channels:
   - conda-forge
 dependencies:
   - python
-#The preceding line will be edited for python version in .github/workflows/condatest.yml
-#The rest should match <reporoot>/resources/conda_dgcode.yml except that
-#simple-build-dgcode itself should be left out.
+#The preceding line will be edited for python version in
+#.github/workflows/condatest.yml The rest should match
+#<reporoot>/resources/conda_dgcode.yml except that simple-build-dgcode itself
+#should be left out (and replaced with simple-build-system).
   - compilers
   - bash
   - simple-build-system
   - ncrystal
   - mcpl
   - matplotlib
   - zlib
-  - geant4
+  - geant4 >= 11.1.3
   - expat
   - openscenegraph
   - scipy
   - hdf5
   - pysimplegui
   - pip
-  # Do not install ourselves, since we will be testing the current source code,
-  # not a prebuilt package:
-  #  - pip:
-  #    - simple-build-dgcode
-  #