Fix CI yaml syntax

.gitlab-ci.yml

@@ -3,10 +3,10 @@ pages:
   image: node:14-alpine
   stage: deploy
   script:
-    - npm install
-    - npm run build
-    - apk add parallel brotli gzip
-    - parallel --will-cite "gzip -9 -k {} && brotli -k {}" ::: ./public/**
+    - "npm install"
+    - "npm run build"
+    - "apk add parallel brotli gzip"
+    - "parallel --will-cite \"gzip -9 -k {} && brotli -k {}\" ::: ./public/**"
   artifacts:
     paths:
       - public