Enable the same PHP extensions for the dependency-validation job that are used for the unit-tests job

Author: sebastianbergmann

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: 8.3
-          extensions: none, iconv, json, phar, tokenizer
+          extensions: none, curl, dom, json, libxml, mbstring, openssl, phar, soap, tokenizer, xml, xmlwriter
           coverage: none
           tools: none