Bump electron from 7.1.14 to 15.5.5

Bumps [electron](https://github.com/electron/electron) from 7.1.14 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](https://github.com/electron/electron/compare/v7.1.14...v15.5.5)

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

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

package.json

@@ -47,7 +47,7 @@
     "chalk": "^2.4.2",
     "death": "^1.1.0",
     "deepmerge": "^2.2.1",
-    "electron": "^7.1.14",
+    "electron": "^15.5.5",
     "flowa": "^4.0.2",
     "fs-extra": "^5.0.0",
     "gif-encoder": "^0.6.1",