fix: upgrade @graphql-tools/merge from 9.0.4 to 9.0.7

Snyk has created this PR to upgrade @graphql-tools/merge from 9.0.4 to 9.0.7.

See this package in npm:
https://www.npmjs.com/package/@graphql-tools/merge

See this project in Snyk:
https://app.snyk.io/org/acinader/project/21343059-02d9-4182-87d7-718a44b181ef?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -21,7 +21,7 @@
   "dependencies": {
     "@apollo/server": "4.11.0",
     "@babel/eslint-parser": "7.25.8",
-    "@graphql-tools/merge": "9.0.4",
+    "@graphql-tools/merge": "9.0.7",
     "@graphql-tools/schema": "10.0.4",
     "@graphql-tools/utils": "8.12.0",
     "@parse/fs-files-adapter": "3.0.0",