chore: remove unnecessary error handling

[tenshiAMD]

What:

• Found unnecessary error handling in app/lib/modules/repository.js

Why:

• To achieve 100% test coverage.

How:

• Remove unnecessary error handling in app/lib/modules/repository.js (already handled by this line) https://github.com/all-contributors/app/blob/e33b4823825d554847dfd6285969cdb1d664edf5/lib/modules/repository.js#L222

Checklist:

• [x] Documentation
• [x] Ready to be merged
• [x] Added myself to contributors table. Bot Usage

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated
app	✅ Ready (Inspect)	Visit Preview	Sep 11, 2022 at 10:46AM (UTC)

[codecov[bot]]

Codecov Report

Base: 98.95% // Head: 99.21% // Increases project coverage by +0.25% :tada:

Coverage data is based on head (e33b482) compared to base (8275d18). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #410 +/- ## ========================================== + Coverage 98.95% 99.21% +0.25% ========================================== Files 15 15 Lines 383 381 -2 Branches 46 46 ========================================== - Hits 379 378 -1 + Misses 4 3 -1 ``` | [Impacted Files](https://codecov.io/gh/all-contributors/app/pull/410?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=all-contributors) | Coverage Δ | | |---|---|---| | [lib/modules/repository.js](https://codecov.io/gh/all-contributors/app/pull/410/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=all-contributors#diff-bGliL21vZHVsZXMvcmVwb3NpdG9yeS5qcw==) | `100.00% <100.00%> (+1.23%)` | :arrow_up: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=all-contributors). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=all-contributors)

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[github-actions[bot]]

:tada: This PR is included in version 1.15.0 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: