CI: Limit pip extras check to Build tag
xref https://github.com/pandas-dev/pandas/pull/49241#issuecomment-1320485994

cc @lithomas1 

This doesn't seem to be triggering, but the logic looks correct to me(pretty sure its identical to the working sdist trigger).

I'll try again later, we might be hitting some sort of concurrency limit.  Oh, I figured it out. You need to add "labeled" to the "on" tag like https://github.com/pandas-dev/pandas/blob/main/.github/workflows/sdist.yml#L12, for the labelling to trigger the runs. > Oh, I figured it out. You need to add "labeled" to the "on" tag like https://github.com/pandas-dev/pandas/blob/main/.github/workflows/sdist.yml#L12, for the labelling to trigger the runs.

Ah cool thanks. Added the on tags to the workflow Thanks @mroeschke.