The following packages have unmet dependencies:
 libgphoto2-dev : Depends: libgphoto2-6 (= 2.5.28-stable~202201181038) but 2.5.29-stable~202203161821 is to be installed
E: Unable to correct problems, you have held broken packages.

stellarmate@stellarmate:~ $ sudo apt policy libgphoto2-dev
libgphoto2-dev:
  Installed: (none)
  Candidate: 2.5.28-stable~202201181038
  Version table:
     2.5.28-stable~202201181038 500
        500 https://ppa.stellarmate.com/repos/apt/stable bullseye/main arm64 Packages
     2.5.27-1 500
        500 http://deb.debian.org/debian bullseye/main arm64 Packages
stellarmate@stellarmate:~ $ sudo apt policy libgphoto2-6
libgphoto2-6:
  Installed: 2.5.29-stable~202203161821
  Candidate: 2.5.29-stable~202203161821
  Version table:
 *** 2.5.29-stable~202203161821 500
        500 https://ppa.stellarmate.com/repos/apt/stable bullseye/main arm64 Packages
        100 /var/lib/dpkg/status
     2.5.27-1 500
        500 http://deb.debian.org/debian bullseye/main arm64 Packages