CI: restore parallelisation

.gitlab-ci.yml

@@ -29,6 +29,7 @@ install:
 chrome:
   image: cypress/browsers:node14.17.0-chrome88-ff89
   stage: test
+  parallel: 4
   script:
     - yarn ci & npx wait-on http://localhost:3004
     - yarn cypress:run --record --parallel --browser chrome --group "Chrome"
@@ -36,6 +37,7 @@ chrome:
 chrome-mobile:
   image: cypress/browsers:node14.17.0-chrome88-ff89
   stage: test
+  parallel: 4
   script:
     - yarn ci & npx wait-on http://localhost:3004
     - yarn cypress:run --record --parallel --browser chrome --group "Chrome - Mobile" --config "viewportWidth=375,viewportHeight=667"
@@ -43,6 +45,7 @@ chrome-mobile:
 firefox:
   image: cypress/browsers:node14.17.0-chrome88-ff89
   stage: test
+  parallel: 4
   script:
     - yarn ci & npx wait-on http://localhost:3004
     - yarn cypress:run --record --parallel --browser firefox --group "Firefox"
@@ -50,6 +53,7 @@ firefox:
 firefox-mobile:
   image: cypress/browsers:node14.17.0-chrome88-ff89
   stage: test
+  parallel: 4
   script:
     - yarn ci & npx wait-on http://localhost:3004
     - yarn cypress:run --record --parallel --browser firefox --group "Firefox - Mobile" --config "viewportWidth=375,viewportHeight=667"