feat: update python versions as part of update_dependencies (#496)

* Update python versions as part of update_dependencies

* refactor: pulling out to update_pythons

* refactor: rewrite and expect install

* feat: support macos too, logging output

* WIP: update

* refactor: drive from original file

* Remove unused variable

* Output a diff instead of the result file, to review changes more easily

* fix: minor cleanup

Co-authored-by: Henry Fredrick Schreiner <henry.fredrick.schreiner@cern.ch>
Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: Joe Rickerby <joerick@mac.com>

setup.cfg

@@ -51,6 +51,8 @@ dev =
     pyyaml
     requests
     typing-extensions
+    packaging>=20.8
+    rich>=9.6
 
 [options.packages.find]
 include =
@@ -81,7 +83,7 @@ junit_family=xunit2
 
 [mypy]
 python_version = 3.6
-files = cibuildwheel,test,unit_test
+files = cibuildwheel,test,unit_test,bin
 warn_unused_configs = True
 warn_redundant_casts = True