OWS Release 1.8.29

This release includes support for heterogenous multi-product layers (single layers that combine data from satellite platforms that may have different bands or native resolutions - e.g. Sentinel-2 plus Landsat), an upgrade to the docker container (now based on Ubuntu 22.04, with Python 3.10), plus documentation updates and bug fixes.

Full list of changes:

• Enhancements to support heterogenous multi-product layers (#837, #841, #844)
• Refactor data for integration test fixtures (#835)
• Docker image migrated to Python3.10/Ubuntu-22.040-based osgeo/gdal base image, and updates to dependencies (#838, #843, #852, #854, #856, #859)
• Isolate ops imports to minimise dependencies for appliations only using the styling API (#855)
• Documentation updates and improvements (#846, #847, #848, #849)
• Bug Fix: Skip cached bounding boxes when layer extent is entirely outside the valid region for the CRS (#832)
• Bug Fix: Invalid version parameters in otherwise valid requests were failing with unhandled 500 errors. OWS now makes a best-effort guess in this case, tending towards the lowest supported version (#850)
• Bug Fix: response_crs parameter was not being handled correctly by WCS1 (#858)
• Updates to HISTORY.rst and default version string for release (#860)

This release includes contributions from @SpacemanPaul, and @pindge.