devel/electron34: update to 34.5.5

Changelog:

• https://github.com/electron/electron/releases/tag/v34.5.4
• https://github.com/electron/electron/releases/tag/v34.5.5

Reported by: GitHub (watch releases)

(cherry picked from commit 3fc865d85a8d2ac87242dbe4f5503d09d530295a)