Dependency cleanup phase 2: CI runners consume the [test] extra

.github/workflows/pyotracker.yml

@@ -27,17 +27,18 @@ jobs:
       - name: Install dependencies
         run: |
           conda install mpi4py pandas setuptools git
-          pip install sphinx sphinx_rtd_theme sphinx-copybutton cplex
-          pip install xpress
-          pip install matplotlib
+          pip install cplex xpress
 
       - name: set up pyomo
         run: |
           pip install git+https://github.com/Pyomo/pyomo.git@${{ matrix.pyomo-version }}
 
       - name: setup the program
         run: |
-          pip install -e .
+          # [doc] too: this job runs "make doctest" below.  The tracked
+          # pyomo (installed from git above) already satisfies the pyomo
+          # requirement, so pip does not replace it.
+          pip install -e ".[test,doc]"
 
       - name: Test EF/PH
         run: |