staging-v22.2.18: release-22.2: rangefeed: add TestProcessorContextCancellation
#118630
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Backport 1/1 commits from #118470 on behalf of @erikgrinaker.
/cc @cockroachdb/release
This is part of a #117612 backport.
This issue only affects the new scheduler-based rangefeed processor in 23.2 (off by default), the legacy processor handled this properly. This is a test-only backport demonstrating this.
Backport 0/2 commits from #117859.
Release justification: test improvement.
/cc @cockroachdb/release
This tests that async tasks spawned by the rangefeed processor are cancelled when the processor shuts down, via context cancellation.
Epic: none
Release note: None
Release justification: