Run coverage in bash

Author: hansthen

.github/workflows/test_code.yml

@@ -41,6 +41,7 @@ jobs:
         pip install pixelmatch
 
     - name: Code tests
+      shell: bash -l {0}
       run: coverage run -p -m pytest -vv --ignore=tests/selenium --ignore=tests/playwright --ignore=tests/snapshots
 
     - name: Upload coverage