feat: Add support for custom working directory

Author: nlemoine

.github/workflows/php-static-analysis.yml

@@ -18,6 +18,11 @@ on:
         default: '--error-format=checkstyle'
         required: false
         type: string
+      WORKING_DIRECTORY:
+        description: The working directory where to run the static analysis.
+        default: '.'
+        required: false
+        type: string
     secrets:
       COMPOSER_AUTH_JSON:
         description: Authentication for privately hosted packages and repositories as a JSON formatted object.
@@ -27,6 +32,9 @@ jobs:
   php-static-analysis:
     name: PHP Static analysis
     runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ${{ inputs.WORKING_DIRECTORY }}
     env:
       COMPOSER_AUTH: '${{ secrets.COMPOSER_AUTH_JSON }}'
       PHPSTAN_EDITOR_URL: 'phpstorm://open?file=%file%&line=%line%'
@@ -45,7 +53,7 @@ jobs:
 
       - name: Get changed files
         id: changed-files
-        uses: tj-actions/changed-files@v45
+        uses: tj-actions/changed-files@v47
 
       - name: Run PHPStan
         if: steps.changed-files.outputs.all_changed_files != ''