Build(deps): Bump codemirror-graphql from 0.12.2 to 0.12.3 in /website (#9462)

Bumps [codemirror-graphql](https://github.com/graphql/graphiql) from 0.12.2 to 0.12.3.
- [Release notes](https://github.com/graphql/graphiql/releases)
- [Changelog](https://github.com/graphql/graphiql/blob/main/CHANGELOG.md)
- [Commits](https://github.com/graphql/graphiql/compare/codemirror-graphql@0.12.2...codemirror-graphql@0.12.3)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

website/package.json

@@ -9,7 +9,7 @@
   },
   "dependencies": {
     "clipboard": "2.0.6",
-    "codemirror-graphql": "0.12.2",
+    "codemirror-graphql": "0.12.3",
     "lz-string": "1.4.4",
     "prop-types": "15.7.2",
     "react": "16.14.0",

website/yarn.lock

@@ -2019,10 +2019,10 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
-codemirror-graphql@0.12.2:
-  version "0.12.2"
-  resolved "https://registry.yarnpkg.com/codemirror-graphql/-/codemirror-graphql-0.12.2.tgz#eacd98f2b887eb048f41c76d3906732c8e0650a5"
-  integrity sha512-rzqXM5C0PijOlGGGVcVY+h9HOinb7oBgvUIOXXTXbW209rjYkWfTfj9Wn8zsdNYHjUADlAlir3uavxIYnFfDKQ==
+codemirror-graphql@0.12.3:
+  version "0.12.3"
+  resolved "https://registry.yarnpkg.com/codemirror-graphql/-/codemirror-graphql-0.12.3.tgz#8b76f59ea02ead356ca39c9574827396e4b4b454"
+  integrity sha512-u0TooVA2MWGNV+Bio89RCTRW9P5FqegB1V9rnz9I0QKoGXX/c9z9/Fc+nj18p8jxkWK8ii8d7hkz7vsNsHxdkw==
   dependencies:
     graphql-language-service-interface "^2.4.2"
     graphql-language-service-parser "^1.6.4"