1.16.1, pin joblib - Githubissues

[] (For Civis employees only) Reference to a relevant ticket in the pull request title
[x] Changelog entry added to CHANGELOG.md at the repo's root level
[x] Description of change in the pull request description
[] If applicable, unit tests have been added and/or updated
[x] The CircleCI builds have all passed

This is a patch release to set a maximum version on joblib, which introduced a breaking change in v1.3

civisanalytics / civis-python