chore(deps-dev): bump electron from 35.7.5 to 39.8.5 in /electron

Bumps [electron](https://github.com/electron/electron) from 35.7.5 to 39.8.5.
- [Release notes](https://github.com/electron/electron/releases)
- [Commits](https://github.com/electron/electron/compare/v35.7.5...v39.8.5)

---
updated-dependencies:
- dependency-name: electron
  dependency-version: 39.8.5
  dependency-type: direct:development
...

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

electron/package.json

@@ -25,7 +25,7 @@
   },
   "devDependencies": {
     "cross-env": "^7.0.3",
-    "electron": "35.7.5",
+    "electron": "39.8.5",
     "electron-builder": "^26.7.0"
   },
   "build": {