flaky: increase wait timeout in TestRevisionPause to solve flakiness issue

[qincwang]

fix flaky related to issue #17548
increased Recorder wait timeout in TestRevisionPause.go to be 10s to eliminate flakiness

[k8s-ci-robot]

Hi @qincwang. Thanks for your PR.

I'm waiting for a etcd-io member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[ivanvc]

Hi @qincwang, thanks for the pull request. I'd suggest seeing the result of running the tests with stress for this PR.

In the meanwhile, please ensure your commit is signed so the developer certificate of origin (DCO) check passes, i.e:

git rebase HEAD~1 --signoff
git push --force

[serathius]

Can you use https://gist.github.com/liggitt/6a3a2217fa5f846b52519acfc0ffece0 to validate the PR helps with flaking?