feat(cli): enable token rotation via CLI

[nejch]

Closes #2766

Changes

Adds the register decorator for the relevant objects.

Documentation and testing

Please consider whether this PR needs documentation and tests. This is not required, but highly appreciated:

• Documentation in the matching docs section
• Unit tests and/or functional tests

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.64%. Comparing base (bdc8852) to head (7a08916).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3048   +/-   ##
=======================================
  Coverage   96.63%   96.64%           
=======================================
  Files          95       95           
  Lines        6100     6104    +4     
=======================================
+ Hits         5895     5899    +4     
  Misses        205      205           

Flag	Coverage Δ
api_func_v4	82.61% <80.00%> (+0.10%)	⬆️
cli_func_v4	82.91% <80.00%> (-0.01%)	⬇️
unit	88.77% <100.00%> (+<0.01%)	⬆️

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Files with missing lines	Coverage Δ
gitlab/mixins.py	92.75% <100.00%> (+0.06%)	⬆️