Prep release 2.0.10 (getmoto#4022)

* Updating implementation coverage

* Changelog for release 2.0.10

Prep release 2.0.9 (getmoto#4007)

* Update implementation coverage

* EC2 - Update instance type offerings

* IAM - update list of managed policies

* Changelog for release 2.0.9

* Instance Type Offerings - fix number of available offerings

Prep 2.0.8 release (getmoto#3948)

Prep release 2.0.7 (getmoto#3920)

* Temporarily downgrade werkzeug until we fix the tests

* ChangeLog for release 2.0.7

Prep 2.0.6 release (getmoto#3892)

* Updating implementation coverage

* Changelog for 2.0.6 release

Prepare for Release 2.0.5 (getmoto#3851)

* Changelog for 2.0.5

* Updating implementation coverage

Prep 2.0.4

CHANGELOG for 2.0.3 (getmoto#3814)

Prep 2.0.2 release (getmoto#3768)

* Updating implementation coverage

* Changelog for 2.0.2

Build - use Py3.8