Regenerate SSH Keys

Generate new SSH Keys on every machine and add them to [GitHub Settings](https://github.com/settings/keys):
 - [x] Work MacBook Pro
 - [x] Personal MacBook Pro
 - [ ] Windows Desktop
 - [ ] RecRec MacMini
 - [ ] iMac
 - [ ] Home Assistant Raspberry Pi
 - [ ] TV Raspberry Pi
 - [ ] TV MacMini