chore: Release stackablectl 1.2.2

[Techassi]

This releases stackablectl 1.2.2:

Added

• Add the option for users to customize the behaviour of stackablectl through a user config located at
  $HOME/.config/stackablectl/config.toml (#422).
  • The first supported option is version.check_enabled which can be set to true or false.
• Add a new release check which is used in two different ways (#421):
  • A new stackablectl version check command can be used to check if the current installation is up-to-date
  • A check automatically runs for all other commands (in parallel to not block the commands) and the status is reported as part of the final command output.

[maltesander]

LGTM!