devel/electron34: update to 34.5.3
Changelog:
- https://github.com/electron/electron/releases/tag/v34.5.2
- https://github.com/electron/electron/releases/tag/v34.5.3
Reported by: GitHub (watch releases)
(cherry picked from commit 587a72c3390d70b5ade0601bf33fef08533d2c09)