Bump graphql in /doc/adr/0002/graphql-server-prototype

Bumps [graphql](https://github.com/graphql/graphql-js) from 16.3.0 to 16.8.1.
- [Release notes](https://github.com/graphql/graphql-js/releases)
- [Commits](graphql/graphql-js@v16.3.0...v16.8.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

doc/adr/0002/graphql-server-prototype/package.json

@@ -11,6 +11,6 @@
   "license": "MIT",
   "dependencies": {
     "apollo-server": "^3.6.3",
-    "graphql": "^16.3.0"
+    "graphql": "^16.8.1"
   }
 }

doc/adr/0002/graphql-server-prototype/yarn.lock

@@ -636,10 +636,10 @@ graphql-tag@^2.11.0:
   dependencies:
     tslib "^2.1.0"
 
-graphql@^16.3.0:
-  version "16.6.0"
-  resolved "https://registry.yarnpkg.com/graphql/-/graphql-16.6.0.tgz#c2dcffa4649db149f6282af726c8c83f1c7c5fdb"
-  integrity sha512-KPIBPDlW7NxrbT/eh4qPXz5FiFdL5UbaA0XUNz2Rp3Z3hqBSkbj0GVjwFDztsWVauZUWsbKHgMg++sk8UX0bkw==
+graphql@^16.8.1:
+  version "16.8.1"
+  resolved "https://registry.yarnpkg.com/graphql/-/graphql-16.8.1.tgz#1930a965bef1170603702acdb68aedd3f3cf6f07"
+  integrity sha512-59LZHPdGZVh695Ud9lRzPBVTtlX9ZCV150Er2W43ro37wVof0ctenSaskPPjN7lVTIN8mSZt8PHUNKZuNQUuxw==
 
 has-symbols@^1.0.3:
   version "1.0.3"