devel/electron26: update to 26.6.5
Changelog: https://github.com/electron/electron/releases/tag/v26.6.5
Reported by: GitHub (watch releases)
MFH: 2024Q1
Security: 28b42ef5-80cd-440c-904b-b7fbca74c73d
(cherry picked from commit d64b87cf61e3038ad0e6600bc5d5ec0274520fde)