Upgrade build containers to Python 3.11 #220
Merged
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There are two reasons motivating this upgrade:
1- Python 3.9 is coming to its end of life in October 2025. This is modernizing the CI infrastructure to run the build & integration tests on a Python version available from the Rocky Linux 9 packages and with a few years of support
2- Using Python 3.10+ is a prerequisite to install
numpy 2.xin the OMERO server virtual environment and assess the impact of this major release - see ome/omero-py#445