Event-model

What's Changed
* added `types-requests` to fix linting CI by evalott100 in https://github.com/bluesky/event-model/pull/319
* Adopt copier template by evalott100 in https://github.com/bluesky/event-model/pull/320
* made `units` optional again by evalott100 in https://github.com/bluesky/event-model/pull/325
* made precision optional by evalott100 in https://github.com/bluesky/event-model/pull/328


**Full Changelog**: https://github.com/bluesky/event-model/compare/v1.22.0...v1.22.1

What's Changed
* added `types-requests` to fix linting CI by evalott100 in https://github.com/bluesky/event-model/pull/319
* Adopt copier template by evalott100 in https://github.com/bluesky/event-model/pull/320
* made `units` optional again by evalott100 in https://github.com/bluesky/event-model/pull/325
* made precision optional by evalott100 in https://github.com/bluesky/event-model/pull/328


**Full Changelog**: https://github.com/bluesky/event-model/compare/v1.22.0...v1.22.1rc1

What's Changed
* Added a `NX_class` field as a `PerObjectHint` to the `EventDescriptor` document.
* Removed `Optional` on `DataKey` fields `precision`, ``choices``, and `units`. These fields can still be left out of the `DataKey`, but if provided they cannot be `None`.
* Added a `Limits` type for storing EPICS limit data and a `NotRequired[Limits]` `limits` field to `DataKey`.
* Added a `NotRequired` `dtype_numpy` field to `DataKey` for specifying the numpy dtype of data.
* Bumped from `jsonschema 3.*` to `jsonschema 4.*`.
* Added all documents to `event_model` namespace.

**Full Changelog**: https://github.com/bluesky/event-model/compare/v1.21.0...v1.22.0

What's Changed:
* Update schemas for StreamResource and StreamDatum by genematx in https://github.com/bluesky/event-model/pull/301. Introduced `uri`, `parameters`, and `mimetype` fields; removed `path_semantics` and `resource_kwargs`. More detail: https://github.com/bluesky/event-model/issues/296
* Bump peaceiris/actions-gh-pages from 3.9.3 to 4.0.0 by dependabot in https://github.com/bluesky/event-model/pull/303
* DOC: Fix the switcher URL by AlexanderWells-diamond in https://github.com/bluesky/event-model/pull/305

**Full Changelog**: https://github.com/bluesky/event-model/compare/v1.20.0...v1.21.0

Changed
-------

- Bumped from `pydantic 1.*` to `pydantic 2.*`

Fixed
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- Bug in `rechunk_event_pages` affecting Events with an empty `filled` key

Changed

Dropped support for jsonschema 2.*.