[TASK] Add empty currentcoredata.json to fileadmin for test-stage

.gitlab-ci.yml

@@ -29,6 +29,7 @@ test:
       - export COMPOSER_CACHE_DIR=.cache/composer
       - php -r "copy('https://getcomposer.org/composer.phar', 'composer.phar');"
       - php composer.phar install
+      - mkdir $TYPO3_PATH_WEB/fileadmin/ && touch $TYPO3_PATH_WEB/fileadmin/currentcoredata.json
   script:
       - php composer.phar test:unit