Merge pull request atom#23647 from DeeDeeG/script-downgrade-node-fetch-v2

deps: "downgrade" node-fetch to ^v2.6.7 in script/ (fix "Bump dependencies" job in Nightly CI)

Author: darangi

script/package-lock.json

@@ -35,7 +35,7 @@
     "minidump": "^0.22.0",
     "mkdirp": "0.5.1",
     "nock": "^13.0.2",
-    "node-fetch": "^3.1.1",
+    "node-fetch": "^2.6.7",
     "normalize-package-data": "2.3.5",
     "npm": "^6.14.16",
     "npm-check": "^5.9.2",