Revert "Revert "[Cluster Events] Add basic job events. (#29164)" (#29…

[minerharry]

…… (#29196)

This reverts the PR and fixes the test failures

This also fixes a bug around _monitor_jobs API. the monitor job can be called on the same job twice now, which will break the event (because at the end of monitor job, we record the event that job is completed). The same completed event can be reported twice without the fix

upgrade gtest to 1.12.1 (#29902)

While working on #28209 I hit issue google/googletest#3514, which causes a couple gtest-dependent tests to be unable to build

Why are these changes needed?

Related issue number

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    method in Tune, I've added it in doc/source/tune/api/ under the
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