Update offline-github-changelog to version 4.0.0

Author: depfu[bot]

package.json

@@ -55,7 +55,7 @@
     "eslint-plugin-standard": "^5.0.0",
     "mocha": "^8.2.1",
     "nyc": "^15.0.0",
-    "offline-github-changelog": "^3.0.0",
+    "offline-github-changelog": "^4.0.0",
     "prettier": "~3.0.0",
     "systemjs-builder": "0.16.15",
     "temp": "^0.9.4",