fixup: yaml syntax

.gitlab-ci.yml

@@ -35,7 +35,7 @@ build:
     - source pwait.sh
     - mkdir public
     - python Dashboard/Python/centr_stats.py | jq . > public/centr_stats.json
-    - [ $CHECK_CENTR_SCHEMA != "0" ] && curl 'https://stats.centr.org/schemas/registration_data_v2.1.json' > 'registration_data_v2.1.json' && check-jsonschema --schemafile registration_data_v2.1.json public/centr_stats.json;
+    - '[ $CHECK_CENTR_SCHEMA != "0" ] && curl "https://stats.centr.org/schemas/registration_data_v2.1.json" > "registration_data_v2.1.json" && check-jsonschema --schemafile registration_data_v2.1.json public/centr_stats.json'
     - shopt -s globstar nullglob nocaseglob nocasematch
     - python3 Dashboard/Python/pages.py Dashboard/pages.json
     - python3 Dashboard/Python/docs.py > Dashboard/docs.json