Omero-vitessce

This release:
- Fixes a dependency issue with zarr and Vitessce.
- Updates the app to Vitessce 3.5.6

What's Changed
* Allow adding the [ObsSetsSizes](http://vitessce.io/docs/components/#obssetsizes) view also when no feature matrix (expression data) is provided.
Dev by MicheleBortol in https://github.com/NFDI4BIOIMAGE/omero-vitessce/pull/17


**Full Changelog**: https://github.com/NFDI4BIOIMAGE/omero-vitessce/compare/v1.2.1...v1.2.2

What's Changed
* Show image names in the "spatial layers" view.

**Full Changelog**: https://github.com/NFDI4BIOIMAGE/omero-vitessce/compare/v1.2.0...v1.2.1

What's Changed
* Allow OMERO.tables as input by MicheleBortol in https://github.com/NFDI4BIOIMAGE/omero-vitessce/pull/15


**Full Changelog**: https://github.com/NFDI4BIOIMAGE/omero-vitessce/compare/v1.1.13...v1.2.0

What's Changed
* Support Rectangle ROIs by MicheleBortol in https://github.com/NFDI4BIOIMAGE/omero-vitessce/pull/14


**Full Changelog**: https://github.com/NFDI4BIOIMAGE/omero-vitessce/compare/v1.1.2...v1.1.13