Newer api add comment indirection.

[avrabe]

Early versions of the Rest API directly added comment information into the output:

"comment": [ ]

This has been changed to provide additional meta-information and the comments moved one level deeper:

"comment": { "comments": [ ] }

The change needs a version upgrade as the interfaces changes.

fixes #63

[what-the-diff[bot]]

PR Summary

• Dependency Upgrade in Cargo.toml The tracing-subscriber and mockito versions were upgraded to enhance the app's stability and function. Other dependencies like reqwest, serde, serde_derive, serde_json, url, and time were also updated for optimal efficiency.

• Example Code Added in README.md A new block of example code was incorporated in the README.md for better user comprehension and replicability.

• Inclusion of New 'comments.rs' in Examples Directory An additional comments.rs file was added to the examples directory, giving more diverse instances for usage.

• Enhancements to 'src/rep.rs' with New Comments Struct A novel struct Comments was introduced in src/rep.rs, alongside the associated changes for better functionality.

• Addition of New Test File - 'errors_test.rs' An errors_test.rs file was appended to the tests directory to reinforce the code reliability through improved testing.

• Additional Test Cases in 'tests/rep_test.rs' New test cases were introduced to scrutinize the comments() method inside the Issue struct, ensuring the robustness of response when generating issue comments.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 93.75000% with 1 line in your changes missing coverage. Please review.

Project coverage is 27.55%. Comparing base (e302b90) to head (3df0cc0).

Files	Patch %	Lines
tests/rep_test.rs	80.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #64 +/- ## ========================================== + Coverage 27.19% 27.55% +0.35% ========================================== Files 19 20 +1 Lines 2456 2112 -344 ========================================== - Hits 668 582 -86 + Misses 1788 1530 -258 ```

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