ci(ubuntu/ifort): reclaim disk, copy libmf6.so, skip ex-gwe-radial (#…

…1980)

* The Intel test job can run out of disk space on Ubuntu. Delete some unnecessary things baked into the runner image.
* Copy libmf6.so with the mf6 executable into ~/.local/bin/modflow before running example tests, previously we neglected to do this so the shared object installed from the executables distribution was being used.
* Skip ex-gwe-radial when running example tests with Intel Fortran for now, pending reduction in memory use. This example is very memory intensive, this seems to be the cause of the crash.

.github/workflows/ci.yml

@@ -379,6 +379,18 @@ jobs:
         shell: bash
     steps:
 
+      - name: Free disk space (Ubuntu)
+        if: runner.os == 'Linux'
+        uses: jlumbroso/free-disk-space@main
+        with:
+          tool-cache: true
+          android: true
+          dotnet: true
+          haskell: true
+          large-packages: true
+          docker-images: true
+          swap-storage: true
+
       - name: Checkout MF6
         uses: actions/checkout@v4
         with:
@@ -461,9 +473,11 @@ jobs:
         working-directory: modflow6
         shell: pixi run bash -e {0}
         run: |
-          cp bin/mf6 $(which mf6)
+          cp bin/mf6 ~/.local/bin/modflow/
+          cp bin/libmf6.so ~/.local/bin/modflow/
           cd ../modflow6-examples/autotest
-          pytest -v -n auto test_scripts.py
+          # todo reinstate ex-gwe-radial once memory use reduced
+          pytest -v -n auto test_scripts.py -k "not gwe-radial"
       
       - name: Upload failed test output
         if: failure()