asv 0.6.0 breaks our CI #25561
Description
A new ASV came out yesterday and is failing with:
Run asv run --config asv.conf.actions.json
Couldn't load asv.plugins.mamba because
No module named 'mamba'
Couldn't load asv.plugins.virtualenv because
No module named 'packaging'
· Unknown environment type 'virtualenv'
· No environments selected
Error: Process completed with exit code 1.
We will pin asv for a temporary solution.