devel/electron34: update to 34.5.8

Changelog: https://github.com/electron/electron/releases/tag/v34.5.8

Reported by: GitHub (watch releases)
MFH: 2025Q2
Security: 8c94ae2a-06f5-4383-9a7f-1211cb0dd476

(cherry picked from commit 9638690533d6809367ca78aaac32b7799d488db8)