Meltano

<https://github.com/meltano/sdk/pull/3635|#3635 refactor: Make the `tests` attribute of `SingerTestSuite` for built-in integration tests a covariant type>
Pull request opened by <https://github.com/edgarrmondragon|edgarrmondragon>
SSIA

*Summary by Sourcery*

Enhancements:
• Generalize the SingerTestSuite tests attribute from a concrete list to a Sequence to support more flexible and covariant test collections.
<https://github.com/meltano/sdk|meltano/sdk>

<https://github.com/meltano/sdk/pull/3635|#3635 refactor: Make the `tests` attribute of `SingerTestSuite` for built-in integration tests a covariant type>
Pull request merged by <https://github.com/edgarrmondragon|edgarrmondragon>
<https://github.com/meltano/sdk|meltano/sdk>