Revert "CI: add CentOS 9"
This reverts commit b1b11fe0
Let's revert adding CentOS 9 to our CI until it stops breaking due to the runners...
Issue for reference: https://sft.its.cern.ch/jira/browse/SPI-2210
This reverts commit b1b11fe0
Let's revert adding CentOS 9 to our CI until it stops breaking due to the runners...
Issue for reference: https://sft.its.cern.ch/jira/browse/SPI-2210