This is a combination of 2 commits.
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CI: Move probe tests to centos 9 stream
Pin selenium to 3.x for now, until we can run down the issues with 4.x
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CI: Move off CentOS 8
Remove swift-tox-py36-centos-8-stream job entirely.
Move the following jobs to CentOS 9:
- swift-tox-func-s3api-ceph-s3tests-tempauth
- swift-tox-func-s3api-tests-tempauth
- swift-multinode-rolling-upgrade, as well as the other rolling
upgrade jobs
Remove the swift-multinode-rolling-upgrade-victoria job, as py39
support (required for CentOS 9) was not added until wallaby.
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Related-Change: I596415d17f77f48a6e8a63a61b734a8ca0865847
Change-Id: I4f6b9c07af7bc768654f1a5d0c66b048e0f2c9c1
4a89cafc18