feat: Custom Delegation(Target) Roles

[kairoaraujo]

It starts with a simple fix in the Database Schema:

• Include rolename as unique to avoid duplications
• Include column to set Target Role as active
• Implement several CRUD to handle inactive roles

Implements the Custom Delegation Roles

• Add support to custom delegation roles during bootstrap
• Add support for using offline and online keys in the custom delegations roles
• Add support for adding extra delegation roles afterwards
• Add support for updating delegation roles
• Add support for deleting delegation roles

TODO:

• Tests: It just fixes errors for the tests, it requires a re-implementation of tests.

NOTE: We will prioritize the functions tests (FT) to this feature which prevent regrations or breaking the compatibility with BINS.
We will implement unit tests as improvement for development process.

See: FT propose: repository-service-tuf/repository-service-tuf#817

[codecov]

Codecov Report

Attention: Patch coverage is 15.42857% with 296 lines in your changes missing coverage. Please review.

Project coverage is 75.24%. Comparing base (714a29d) to head (4b4ffdf).
Report is 98 commits behind head on main.

Files with missing lines	Patch %	Lines
repository_service_tuf_worker/repository.py	14.49%	289 Missing ⚠️
...pository_service_tuf_worker/models/targets/crud.py	30.00%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##              main     #592       +/-   ##
============================================
- Coverage   100.00%   75.24%   -24.76%     
============================================
  Files           15       14        -1     
  Lines         1071     1317      +246     
============================================
- Hits          1071      991       -80     
- Misses           0      326      +326     

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[kairoaraujo]

Suppressed by #593 (branch in the upstream, to show the FT)