Bump graphql from 15.3.0 to 15.4.0 (#124)

Bumps [graphql](https://github.com/graphql/graphql-js) from 15.3.0 to 15.4.0.
- [Release notes](https://github.com/graphql/graphql-js/releases)
- [Commits](graphql/graphql-js@v15.3.0...v15.4.0)

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

example/package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "eslint": "7.12.1",
     "@graphql-eslint/eslint-plugin": "0.4.1",
-    "graphql": "15.3.0",
+    "graphql": "15.4.0",
     "typescript": "4.0.3"
   }
 }

packages/plugin/package.json

@@ -29,7 +29,7 @@
     "@types/eslint": "7.2.4",
     "bob-the-bundler": "1.1.0",
     "graphql-config": "3.0.3",
-    "graphql": "15.3.0",
+    "graphql": "15.4.0",
     "typescript": "4.0.3"
   },
   "peerDependencies": {

yarn.lock

@@ -2979,10 +2979,10 @@ graphql-config@^3.0.0:
     string-env-interpolation "1.0.1"
     tslib "^2.0.0"
 
-graphql@15.3.0:
-  version "15.3.0"
-  resolved "https://registry.npmjs.org/graphql/-/graphql-15.3.0.tgz#3ad2b0caab0d110e3be4a5a9b2aa281e362b5278"
-  integrity sha512-GTCJtzJmkFLWRfFJuoo9RWWa/FfamUHgiFosxi/X1Ani4AVWbeyBenZTNX6dM+7WSbbFfTo/25eh0LLkwHMw2w==
+graphql@15.4.0:
+  version "15.4.0"
+  resolved "https://registry.yarnpkg.com/graphql/-/graphql-15.4.0.tgz#e459dea1150da5a106486ba7276518b5295a4347"
+  integrity sha512-EB3zgGchcabbsU9cFe1j+yxdzKQKAbGUWRb13DsrsMN1yyfmmIq+2+L5MqVWcDCE4V89R5AyUOi7sMOGxdsYtA==
 
 growly@^1.3.0:
   version "1.3.0"