fix(deps): update dependency graphql to v15.8.0 (#408)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package-lock.json

@@ -250,7 +250,7 @@
     "capitalize": "2.0.4",
     "dotenv": "10.0.0",
     "escape-html": "1.0.3",
-    "graphql": "15.7.2",
+    "graphql": "15.8.0",
     "graphql-config": "4.1.0",
     "graphql-language-service-server": "2.7.14",
     "graphql-tag": "2.12.6",