Bump electron from 11.2.3 to 15.5.5

Bumps [electron](https://github.com/electron/electron) from 11.2.3 to 15.5.5.
- [Release notes](https://github.com/electron/electron/releases)
- [Changelog](https://github.com/electron/electron/blob/main/docs/breaking-changes.md)
- [Commits](electron/electron@v11.2.3...v15.5.5)

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

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

Author: dependabot[bot]

package-lock.json

@@ -53,7 +53,7 @@
     "chokidar": "^3.5.1",
     "cmake-js": "^6.1.0",
     "command-exists": "^1.2.9",
-    "electron": "^11.2.3",
+    "electron": "^15.5.5",
     "es6-promise": "^4.2.8",
     "eslint": "^6.8.0",
     "eslint-config-prettier": "^6.15.0",