This PR allows running a subset of the daily tests with a PR by
attaching the `run-extra-tests` flag. This is done by conditionally
running the daily tests when the label is attached. (I will do that for
this PR to demonstrate).
One downside of this PR is that a lot of tests will forever show-up as
"skipped" for most PRs, as long as that doesn't bother us it should be
OK. Skipped tests don't take up any of our runner compute.
Another note, if the label isn't attached on the first commit, the
submitter will need to push something to get the tests to run again.
There is a way to make it kick off tests during a label, but that added
a bunch more complexity so just wanted to start with this.
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Signed-off-by: Madelyn Olson <madelyneolson@gmail.com>
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