Attempt to work around issues with github hosted runner

- The Ubuntu build and install fails possibly due to this:
actions/runner-images#10636
- On MacOS `brew` fails to install pkgconfig: apache/arrow#44820

.github/workflows/package.yml

@@ -25,11 +25,7 @@ jobs:
         if: ${{ runner.os == 'macOS' }}
         run: |
           brew install gsl
-          brew install hdf5
-          brew install graphviz
-          brew install doxygen
-          brew install pkg-config
-          
+          brew install hdf5          
       - name: Windows dependencies
         if: ${{ runner.os == 'Windows' }}
         uses: mamba-org/setup-micromamba@v1

.github/workflows/pymoose.yml

@@ -8,11 +8,10 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-14, windows-latest]
+        os: [ubuntu-22.04, macos-14, windows-latest]
         build_type: [Release]
         c_compiler: [clang]
-        python-version: ["3.8"]
-        # python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.12"]
         include:
           - os: ubuntu-latest
             apt: 10