feat(agent): define the OAS for CredentialIssuerEndpoints [WIP]

[yshyn-iohk]

Description:

The Credential Issuance OIDC endpoint MVP is implemented in the Agent. ATL-6518

Checklist:

• [ ] My PR follows the contribution guidelines of this project
• [ ] My PR is free of third-party dependencies that don't comply with the Allowlist
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have checked the PR title to follow the conventional commit specification

[github-actions[bot]]

Integration Test Results

15 files  ±0  15 suites  ±0   2s :stopwatch: ±0s 33 tests ±0  33 :white_check_mark: ±0  0 :zzz: ±0  0 :x: ±0  42 runs  ±0  42 :white_check_mark: ±0  0 :zzz: ±0  0 :x: ±0 

Results for commit a639d94a. ± Comparison against base commit 3608aafd.

:recycle: This comment has been updated with latest results.

[github-actions[bot]]

Unit Test Results

 96 files  + 3   96 suites  +3   21m 2s :stopwatch: +58s 823 tests +32  814 :white_check_mark: +31  8 :zzz: ±0  1 :x: +1  830 runs  +32  821 :white_check_mark: +31  8 :zzz: ±0  1 :x: +1 

For more details on these failures, see this check.

Results for commit a639d94a. ± Comparison against base commit 3608aafd.

:recycle: This comment has been updated with latest results.

[sonarqubecloud[bot]]

Quality Gate failed

Failed conditions
2 Security Hotspots

See analysis details on SonarCloud

[coveralls]

coverage: 48.009% (-1.4%) from 49.381% when pulling c30a24419d5052c28b8d83137fbe9b445952f535 on oidc into 343843890cb7c2a567eb0e33d64cbf54b7e141f6 on main.