chore: add .tox into .hgignore

5 jobs for branch/default in 39 seconds (queued for 6 seconds)
Status Name Job ID Coverage
  Tests
passed black #34411

00:00:23

passed check-manifest #34410

00:00:20

failed py3 #34408

00:00:32

failed py3-from-forge #34409

00:00:38

 
  After Tests
skipped trigger-other-pipelines #34412
 
Name Stage Failure
failed
py3-from-forge Tests
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failed
py3 Tests
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