Extend oidc_cli security context generator to include calls to the v2…

[LGhoull]

Thank you for contributing to Harbor!

Comprehensive Summary of your change

• Extend oidc_cli security context generator to include calls to the v2 API
• remove idtoken security context generator
• rename and consolidate tests and names accordingly

Id Tokens can no longer be used to authenticate against the v2 API
Instead, basic auth with the CLI secret as password must be used.

The use of the OIDC ID token as a bearer token for authentication against the API is inconvenient since the ID token is hard to get as a normal user.

Issue being fixed

Fixes #14236

Please indicate you've done the following:

• Well Written Title and Summary of the PR
• Label the PR as needed. "release-note/ignore-for-release, release-note/new-feature, release-note/update, release-note/enhancement, release-note/community, release-note/breaking-change, release-note/docs, release-note/infra, release-note/deprecation"
• Accepted the DCO. Commits without the DCO will delay acceptance.
• Made sure tests are passing and test coverage is added if needed.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed in website repository.

[LGhoull]

Definitely a breaking change, but I can't add labels.

[reasonerjt]

Although the change is relatively small, b/c this is a break change and involves security. I wish to suggest that a proposal is needed for review and get approval from maintainers.

If we reach a consensus to do this, there should also be some change needed in UI and Documentation.

[reasonerjt]

Please write a proposal and get approval first.

[LGhoull]

Proposal: goharbor/community#250

[github-actions]

This PR is being marked stale due to a period of inactivty. If this PR is still relevant, please comment or remove the stale label. Otherwise, this PR will close in 30 days.

[LGhoull]

Still relevant

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 46.23%. Comparing base (c8c11b4) to head (2ac2e84).
Report is 306 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #20851      +/-   ##
==========================================
+ Coverage   45.36%   46.23%   +0.86%     
==========================================
  Files         244      247       +3     
  Lines       13333    13863     +530     
  Branches     2719     2867     +148     
==========================================
+ Hits         6049     6409     +360     
- Misses       6983     7117     +134     
- Partials      301      337      +36     

Flag	Coverage Δ
unittests	46.23% <ø> (+0.86%)	⬆️

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see 491 files with indirect coverage changes