Re-enable composer validation

Author: Klaas Sangers

bitbucket-pipelines.yml

@@ -19,7 +19,7 @@ pipelines:
 
           # Composer installation.
           - echo "$COMPOSER_AUTHENTICATION" > $COMPOSER_HOME/auth.json
-          #- composer validate --strict --no-interaction
+          - composer validate --strict --no-interaction
           - composer install --dev --prefer-dist --no-scripts --ignore-platform-reqs --no-progress --optimize-autoloader --no-interaction
 
           # Execute tests from MediaCT testing suite.