:white_check_mark: Add unit test for workq

[codecov[bot]]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (1675ab2) 33.66% compared to head (b030e09) 33.87%.

Files	Patch %	Lines
pkg/inits/signing.go	0.00%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #280 +/- ## ========================================== + Coverage 33.66% 33.87% +0.20% ========================================== Files 132 131 -1 Lines 9240 9074 -166 ========================================== - Hits 3111 3074 -37 + Misses 5813 5690 -123 + Partials 316 310 -6 ``` | [Flag](https://app.codecov.io/gh/go-sigma/sigma/pull/280/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/280/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-sigma) | `33.87% <72.72%> (+0.20%)` | :arrow_up: | | [unit-test-postgresql](https://app.codecov.io/gh/go-sigma/sigma/pull/280/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-sigma) | `33.87% <72.72%> (+0.20%)` | :arrow_up: | | [unit-test-sqlite3](https://app.codecov.io/gh/go-sigma/sigma/pull/280/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-sigma) | `33.87% <72.72%> (+0.20%)` | :arrow_up: | 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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