:sparkles: Remove repository visibility field

[codecov[bot]]

Codecov Report

Attention: 14 lines in your changes are missing coverage. Please review.

Comparison is base (d8a5494) 32.30% compared to head (77b3f6e) 31.98%.

Files	Patch %	Lines
pkg/dal/dao/repository.go	0.00%	14 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #248 +/- ## ========================================== - Coverage 32.30% 31.98% -0.33% ========================================== Files 127 126 -1 Lines 9014 8833 -181 ========================================== - Hits 2912 2825 -87 + Misses 5799 5717 -82 + Partials 303 291 -12 ``` | [Flag](https://app.codecov.io/gh/go-sigma/sigma/pull/248/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-sigma) | Coverage Δ | | |---|---|---| | [unit-test-mysql](https://app.codecov.io/gh/go-sigma/sigma/pull/248/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-sigma) | `31.98% <6.66%> (-0.33%)` | :arrow_down: | | [unit-test-postgresql](https://app.codecov.io/gh/go-sigma/sigma/pull/248/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-sigma) | `31.98% <6.66%> (-0.33%)` | :arrow_down: | | [unit-test-sqlite3](https://app.codecov.io/gh/go-sigma/sigma/pull/248/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-sigma) | `31.98% <6.66%> (-0.33%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-sigma#carryforward-flags-in-the-pull-request-comment) to find out more.

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