Bump node-fetch from 2.6.1 to 2.6.7 in /actions/schema-up

Bumps [node-fetch](https://github.com/node-fetch/node-fetch) from 2.6.1 to 2.6.7.
- [Release notes](https://github.com/node-fetch/node-fetch/releases)
- [Commits](node-fetch/node-fetch@v2.6.1...v2.6.7)

---
updated-dependencies:
- dependency-name: node-fetch
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

actions/schema-up/package-lock.json

@@ -8,7 +8,7 @@
   "dependencies": {
     "actions-toolkit": "2.2.0",
     "graphql": "14.5.8",
-    "node-fetch": "2.6.1",
+    "node-fetch": "2.6.7",
     "relay-compiler": "7.1.0"
   }
 }