deskutils/sigi: update to 3.6.1

ChangeLog: https://github.com/sigi-cli/sigi/releases/tag/v3.6.1

• Dependency updates
• Minor changes in references to the author (now "booniepepper" and formerly "hiljusti")

PR: 272405
Reported by: hiljusti@so.dang.cool (maintainer)