Integration tests: switch some base images #5499
Merged
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What type of PR is this?
/kind other
What this PR does / why we need it:
Replace some of the base images we've been using (particularly centos:8, which will EOL soon) with other images hosted on quay.io.
We already use registries.conf at test-time to redirect some image references there, so this will slightly reduce the number of registries which we need to be able to reach while running these tests.
How to verify it
Which issue(s) this PR fixes:
None
Special notes for your reviewer:
Does this PR introduce a user-facing change?