Bump graphql from 16.6.0 to 16.8.1 in /ui/v2.5 (#4140)

Bumps [graphql](https://github.com/graphql/graphql-js) from 16.6.0 to 16.8.1.
- [Release notes](https://github.com/graphql/graphql-js/releases)
- [Commits](https://github.com/graphql/graphql-js/compare/v16.6.0...v16.8.1)

---
updated-dependencies:
- dependency-name: graphql
  dependency-type: direct:production
...

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ui/v2.5/package.json

@@ -38,7 +38,7 @@
     "flag-icons": "^6.6.6",
     "flexbin": "^0.2.0",
     "formik": "^2.2.9",
-    "graphql": "^16.6.0",
+    "graphql": "^16.8.1",
     "graphql-tag": "^2.12.6",
     "graphql-ws": "^5.11.3",
     "i18n-iso-countries": "^7.5.0",