chore(deps): update dependency sinon to v20

Author: renovate-bot

.github/scripts/package.json

@@ -16,6 +16,6 @@
     "devDependencies": {
         "@octokit/rest": "^19.0.0",
         "mocha": "^10.0.0",
-        "sinon": "^18.0.0"
+        "sinon": "^20.0.0"
     }
 }