Use --prefer-dist in scrutinizer install

Author: mmoll

.scrutinizer.yml

@@ -2,6 +2,10 @@
 build:
     environment:
         php: 8.1
+    dependencies:
+        before:
+        override:
+           - 'composer install --no-interaction --no-scripts --prefer-dist'
     tests:
         override:
             - phpcs-run --standard=phpcs.xml.dist