cached the composer cache both in rector and auto-regenerate

Author: Kharhamel

.github/workflows/rector-continuous-integration.yml

@@ -31,6 +31,13 @@ jobs:
         uses: "shivammathur/setup-php@v2"
         with:
           php-version: "${{ matrix.php-version }}"
+          
+      - name: "Cache dependencies installed with composer"
+        uses: "actions/cache@v1"
+        with:
+          path: "~/.composer/cache"
+          key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-"
 
       - name: "Composer install"
         run: "composer install && composer rector && composer test"