chore: remove unecessary mode in scripts

Author: Akryum

packages/@vue/cli-ui/package.json

@@ -6,7 +6,7 @@
     "build": "vue-cli-service build",
     "lint": "vue-cli-service lint",
     "graphql-api": "cross-env VUE_CLI_DEBUG=true vue-cli-service graphql-api",
-    "run-graphql-api": "vue-cli-service run-graphql-api --mode development",
+    "run-graphql-api": "vue-cli-service run-graphql-api",
     "run-test-graphql-api": "cross-env NODE_ENV=test VUE_APP_GRAPHQL_PORT=4040 VUE_APP_GRAPHQL_WS=ws://localhost:4040/graphql yarn run graphql-api",
     "prepublishOnly": "yarn run lint --no-fix && yarn run build",
     "test:e2e:dev": "cross-env VUE_APP_GRAPHQL_WS=ws://localhost:4040/graphql vue-cli-service test:e2e --mode development",