Stardist

This is a minor release that [fixes an issue](https://forum.image.sc/t/stardist-napari-run-not-available/73950/1) with napari 0.4.17.
However, this release also drops support for Python 3.7.

**Full Changelog**: https://github.com/stardist/stardist-napari/compare/2022.7.5...2022.12.6

This release has minor code changes, but adds documentation to the README.

**Full Changelog**: https://github.com/stardist/stardist-napari/compare/2022.6.7...2022.7.5

This is a minor release with just one added package dependency:
* Add `tensorflow-metal` as dependency on macOS/arm64 by psobolewskiPhD in https://github.com/stardist/stardist-napari/pull/21

**Full Changelog**: https://github.com/stardist/stardist-napari/compare/2022.6.4...2022.6.7

This is a bigger release with the following changes:
* Add support for multi-class StarDist models (https://github.com/stardist/stardist-napari/pull/19; see [StarDist release notes](https://github.com/stardist/stardist/releases/tag/0.7.0) for more details)
* Add option to only predict on the current 2D field of view (https://github.com/stardist/stardist-napari/pull/18)
* Run computation in different thread by default and show progress in napari's activity dock (https://github.com/stardist/stardist-napari/pull/20)
* Major internal changes


**Full Changelog**: https://github.com/stardist/stardist-napari/compare/2022.4.8...2022.6.4

Add basic tests and automation via GitHub Actions

Fix 15