update setup-php action

Author: dmason30

.github/workflows/run-tests.yml

@@ -31,7 +31,7 @@ jobs:
             dependencies-laravel-${{ matrix.laravel }}-php-${{ matrix.php }}-${{ matrix.dependency-version }}-composer-
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@v1
+        uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php }}
           extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, bcmath, soap, intl, gd, exif, iconv, imagick