Bump electron from 29.4.3 to 39.8.4

Bumps [electron](https://github.com/electron/electron) from 29.4.3 to 39.8.4.
- [Release notes](https://github.com/electron/electron/releases)
- [Commits](electron/electron@v29.4.3...v39.8.4)

---
updated-dependencies:
- dependency-name: electron
  dependency-version: 39.8.4
  dependency-type: direct:development
...

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

Author: dependabot[bot]

package.json

@@ -34,7 +34,7 @@
     "chai": "^4.2.0",
     "chai-subset": "^1.6.0",
     "colors": "^1.4.0",
-    "electron": "29.4.3",
+    "electron": "39.8.4",
     "electron-mocha": "^12.1.0",
     "get-func-name": "^3.0.0",
     "mocha": "^11.0.0",