Use shutil.get_terminal_size (planetlabs#558)

* Use shutil.get_terminal_size

click.termui.get_terminal_size is no more.

Resolves planetlabs#529

* Add a test for the get_terminal_size import dance

* Fix branch names in workflow

* Add scheduled builds and 2 more Python versions

* Switch import order around to avoid warning

Merge pull request planetlabs#347 from planetlabs/v1-1.4.9-release

1.4.9 release

release v1.4.8

release version 1.4.7

release version 1.4.6

release version 1.4.5

release version 1.4.4

release version 1.4.3

release version 1.4.2

release version 1.4.1