Describe the bug

https://devguide.python.org/triage/labels/ links to https://github.com/python/cpython/labels/test-with-buildbots but that's a bad link because the real label has a hammer emoji in it.

Let's fix it.

Shall we also mention the 🔨 test-with-refleak-buildbots label as well?

https://github.com/python/cpython/labels?q=buildbot

Screenshots

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Additional context

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