Add psutil variable

This MR adds the psutil variable to the conda_build_config.yaml file we keep in this package. This satisfies requirements for some of the packages I co-maintain.

changed title from [conda_build_config] Add psutil variable to satisfy bob.ip.binseg and bob.med.tb (at least) to Add psutil variable

changed the description

enabled an automatic merge when the pipeline for 99c670cd succeeds

Ping @amohammadi.

LGTM but there are packages missing as well. We'll have to wait for the CI to be fixed. Right now I am at bob.blitz

merged

mentioned in commit f7b4047b

mentioned in issue bob#269 (closed)