* Fix quotes in build config cache key

Author: mkopec87

.github/workflows/test.yml

@@ -27,7 +27,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: ~/.cache/pip
-          key: ${{ runner.os }}-pip-${{ hashFiles("**/pyproject.toml") }}
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/pyproject.toml') }}
           restore-keys: |
             ${{ runner.os }}-pip-