Task: remove LocalKeyvault and refactor SignerStore and it's implementations as a service

[MVrachev]

What is the task about?

After a discussion with @kairoaraujo we agreed when we remove LocalKeyvault implementation and move the SignerStore implementation under repository_service_tuf_worker/services/keyvault to be consistent with storage services.

We can also rename SignerStore to KeyVault as it's still a keyvault service.

We plan to add this change for RSTUF Worker at 1.0.0.

Parent feature

No response

References

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[lukpueh]

@MVrachev, may I ask what "refactor SignerStore" means?

[lukpueh]

FYI: #507 removes LocalKeyVault.

[MVrachev]

@MVrachev, may I ask what "refactor SignerStore" means?

The phrasing is not correct. I don't remember what refactoring did I mean, but only the move of SignerStore to repository_service_tuf_worker/services/keyvault as a replacement of LocalKeyvault.