Explicitly add shell

Author: smokestacklightnin

.github/actions/setup-env/action.yml

@@ -19,6 +19,7 @@ runs:
           ${{ inputs.package-root-dir }}/setup.py
 
     - name: Install dependencies
+      shell: bash
       run: |
         python -m pip install --upgrade pip
         pip install ${{ inputs.package-root-dir }}[test]

.github/workflows/test.yml

@@ -29,6 +29,7 @@ jobs:
         package-root-dir: ${{ matrix.package-root-dir }}
 
     - name: Run tests
+      shell: bash
       run: |
         cd ${{ matrix.package-root-dir }}
         pytest