Remove Pyroscope scrape loops for no longer active targets #1833
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PR Description
There is a bug which causes pyroscope.scrape to keep trying to scrape targets even if they're no longer active. We can also see error logs in internal clusters, but we hadn't noticed them before.
Credits in the changelog go to @mattdurham, @wildum, and @dehaansa. We have a squad meeting once every few weeks for bug fixing and socializing. We chose this bug for today's meeting, so I'm adding all the folks from the meeting to the changelog :)
Which issue(s) this PR fixes
Fixes #1789
PR Checklist