on building nightly, of course also install composer dependencies

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

.github/workflows/build-mariadb.yml

@@ -64,11 +64,16 @@ jobs:
         with:
           php-version: '7.4'
           tools: composer:v2
+          extensions: mbstring, xml, ctype, pdo_mysql, mysql, curl, json, zip, session, filter, posix, openssl, fileinfo, bcmath, gmp, gnupg
+
+      - name: Install composer dependencies
+        run: composer install --no-dev
 
       - name: Install Node.js
         uses: actions/setup-node@v3
         with:
           node-version: '20.x'
+
       - name: Install npm dependencies
         run: npm install