Servicex

- Allow for a "type" of backend when we create the `ServiceXDataset`
- Allow for multiple servicex backends to be specified in a .servicex file

This breaks the current user interface:

- You have to specify a `type` of backend when you create the `ServiceXDataset`
- If you use a `.servicex` file, you'll need to change the format so you can have multiple servicex endpoints in there.

While this release was built, and it does contain changes, we decided to back out the changes that broke the old UW - so we can go back to the 2.1 series.

What's Changed
* Handle unknown status code being returned in submission by ponyisi in https://github.com/ssl-hep/ServiceX_frontend/pull/372
* Add timeout to transform status by gordonwatts in https://github.com/ssl-hep/ServiceX_frontend/pull/374

New Contributors
* ponyisi made their first contribution in https://github.com/ssl-hep/ServiceX_frontend/pull/372

**Full Changelog**: https://github.com/ssl-hep/ServiceX_frontend/compare/3.0.0-alpha.15...3.0.0-alpha.17

What's Changed
* build: Update typer lower bound to v0.12.1 by matthewfeickert in https://github.com/ssl-hep/ServiceX_frontend/pull/364
* ci: Use uv for all pip installs by matthewfeickert in https://github.com/ssl-hep/ServiceX_frontend/pull/365
* Process Transform Title and Log URL by BenGalewsky in https://github.com/ssl-hep/ServiceX_frontend/pull/366
* Allow timeout for transform submission by gordonwatts in https://github.com/ssl-hep/ServiceX_frontend/pull/369
* Upgrade to pydantic2 by BenGalewsky in https://github.com/ssl-hep/ServiceX_frontend/pull/368
* Use logging library for status updates by gordonwatts in https://github.com/ssl-hep/ServiceX_frontend/pull/371


**Full Changelog**: https://github.com/ssl-hep/ServiceX_frontend/compare/3.0.0-alpha.15...3.0.0-alpha.16

What's Changed
* ci: Use trusted publishers for publishing to PyPI by matthewfeickert in https://github.com/ssl-hep/ServiceX_frontend/pull/353
* build: Remove nest-asyncio from core dependencies by matthewfeickert in https://github.com/ssl-hep/ServiceX_frontend/pull/356
* Multiple xrootdfiles by BenGalewsky in https://github.com/ssl-hep/ServiceX_frontend/pull/359


**Full Changelog**: https://github.com/ssl-hep/ServiceX_frontend/compare/3.0.0-alpha.14...3.0.0-alpha.15

Try out trusted publisher

What's Changed
* fix: Add CLI entrypoint by matthewfeickert in https://github.com/ssl-hep/ServiceX_frontend/pull/350


**Full Changelog**: https://github.com/ssl-hep/ServiceX_frontend/compare/3.0.0-alpha.11...3.0.0-alpha.13