Dependabot

Check if there are updates available for external dependencies.

foo@bar:~$ dependabot update bundler netbrain/zwift --local . --directory docs
foo@bar:~$ dependabot update docker netbrain/zwift --local . --directory src
foo@bar:~$ dependabot update github_actions netbrain/zwift --local .
foo@bar:~$ dependabot update nix netbrain/zwift --local .