Add hack to get correct python version name

Author: ngoldbaum

.github/workflows/miniconda.yml

@@ -28,13 +28,23 @@ jobs:
       with:
         submodules: true
 
+    # Needed because github actions doesn't have a substring function
+    # https://github.com/orgs/community/discussions/26625
+    - name: Parse Python version
+      id: parse-python-version
+      run: |
+        version=${${{ matrix.python-version }}%t}
+        package_name=${{ endsWith(matrix.python-version, 't') && 'python-freethreading' || 'python' }}
+        echo "::set-output name=version::$version"
+        echo "::set-output name=package_name::$package_name"
+
     - name: Setup Micromamba
       uses: mamba-org/setup-micromamba@v2
       with:
         environment-name: TEST
         init-shell: bash
         create-args: >-
-          ${{ endsWith(matrix.python-version, 't') && 'python-freethreading' || 'python' }}=${{ matrix.python-version }}
+          ${{ steps.parse-python-version.package_name }}=${{ steps.parse-python-version.version }}
           numpy cython pip setuptools pytest hdf5 libnetcdf cftime zlib certifi typing-extensions
           --channel conda-forge