Reduce the number of extensions we install

Author: duncanmcclean

.github/workflows/tests.yml

@@ -29,7 +29,7 @@ jobs:
         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
+          extensions: fileinfo, exif, gd, pdo, sqlite, pdo_sqlite, intl
 
       - name: Install dependencies
         run: |