fix: export mergeSchemas from graphql-yoga and use it

Author: magrinj

packages/graphql-yoga/src/index.ts

@@ -12,6 +12,7 @@ export * from './types.js';
 export { maskError } from './utils/mask-error.js';
 export { type OnParamsEventPayload } from './plugins/types.js';
 export { createLRUCache } from './utils/create-lru-cache.js';
+export { mergeSchemas } from '@graphql-tools/schema';
 export {
   // Handy type utils
   type Maybe,

packages/nestjs/package.json

@@ -51,9 +51,6 @@
     "graphql": "^15.0.0 || ^16.0.0",
     "graphql-yoga": "^4.0.5"
   },
-  "dependencies": {
-    "@graphql-tools/schema": "^10.0.0"
-  },
   "devDependencies": {
     "@nestjs/common": "^10.0.0",
     "@nestjs/core": "^10.0.0",

packages/nestjs/src/index.ts

@@ -4,13 +4,13 @@ import { GraphQLSchema, printSchema } from 'graphql';
 import {
   createYoga,
   filter,
+  mergeSchemas,
   pipe,
   YogaSchemaDefinition,
   YogaServerInstance,
   YogaServerOptions,
 } from 'graphql-yoga';
 import type { ExecutionParams } from 'subscriptions-transport-ws';
-import { mergeSchemas } from '@graphql-tools/schema';
 import { Injectable, Logger } from '@nestjs/common';
 import {
   AbstractGraphQLDriver,