upgrade graphql-tools to v7 (#27791)

Author: yaacovCR

packages/gatsby-recipes/package.json

@@ -15,8 +15,8 @@
     "@babel/standalone": "^7.11.6",
     "@babel/template": "^7.10.4",
     "@babel/types": "^7.11.5",
-    "@graphql-tools/schema": "^6.0.14",
-    "@graphql-tools/utils": "^6.0.14",
+    "@graphql-tools/schema": "^7.0.0",
+    "@graphql-tools/utils": "^7.0.2",
     "@hapi/hoek": "8.x.x",
     "@hapi/joi": "^15.1.1",
     "better-queue": "^3.8.10",