Meltano

<https://github.com/meltano/sdk/pull/3546|#3546 revert: Update `RESTStream.get_url_params` return type annotation to also support returning a string (revert of #3502)>
Pull request opened by <https://github.com/edgarrmondragon|edgarrmondragon>
<https://github.com/meltano/sdk/pull/3502|#3502>

*Summary by Sourcery*

Enhancements:
• Allow RESTStream.get_url_params to return either a dictionary of parameters or an encoded query string, and update its docstring accordingly.
<https://github.com/meltano/sdk|meltano/sdk>

<https://github.com/meltano/sdk/pull/3546|#3546 revert: Update `RESTStream.get_url_params` return type annotation to also support returning a string (revert of #3502)>
Pull request ready for review by <https://github.com/edgarrmondragon|edgarrmondragon>
<https://github.com/meltano/sdk|meltano/sdk>

<https://github.com/meltano/sdk/pull/3546|#3546 revert: Update `RESTStream.get_url_params` return type annotation to also support returning a string (revert of #3502)>
Pull request merged by <https://github.com/edgarrmondragon|edgarrmondragon>
<https://github.com/meltano/sdk|meltano/sdk>