Enable testing against latest cfpint.

Author: pp-mo

.github/workflows/ci-tests.yml

@@ -96,6 +96,17 @@ jobs:
           env_name: ${{ env.ENV_NAME }}
           install_packages: "cartopy nox pip"
 
+      - name: "install latest cfpint"
+        run: |
+          conda install -y pint
+          git clone https://github.com/SciTools/cfpint.git ./cfpint
+          mkdir -p ~/.local/lib/python${{ matrix.python-version }}/site-packages
+          echo $(readlink -f ./cfpint/src) >~/.local/lib/python${{ matrix.python-version }}/site-packages/cfpint.pth
+
+      - name: "confirm cfpint install"
+        run: |
+          python -c "import cfpint; print(cfpint); print(cfpint.Unit)"
+
       - name: "conda info"
         run: |
           conda info