[conda] use pip to install the package [skip ci]

3 jobs for master in 20 minutes and 12 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Build
passed #246218
docker
build_linux_38

00:08:55

81.0%
passed #246217
intel macos
build_macos_intel_38

00:18:35

81.0%
 
  Deploy
passed #246219
docker
deploy_beta

00:01:34