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

3 jobs for master in 12 minutes and 20 seconds
Status Job ID Name Coverage
  Build
passed #246207
docker
build_linux_38

00:07:01

72.0%
passed #246206
intel macos
build_macos_intel_38

00:10:48

72.0%
 
  Deploy
passed #246208
docker
deploy_beta

00:01:32