Fixed variable for working directory to include plugins.

Author: colinmurphy

.github/workflows/codeception.yml

@@ -67,7 +67,7 @@ jobs:
       - name: Run Codeception Tests
         uses: ./.github/actions/codeception
         with:
-          working-directory: ${{ steps.plugin.outputs.slug }}
+          working-directory: plugins/${{ steps.plugin.outputs.slug }}
           php: ${{ matrix.php }}
           wordpress: ${{ matrix.wordpress }}
           coverage: 1