3.21.0 (2024-09-17)

CHANGELOG:

- Updated botocore requirement to >=1.35.0,<1.36.0
- Updated cement to 2.10.14 to fix EBCLI for Python 3.12
- Updated colorama requirement to >=0.4.6,<0.5
- Updated semantic_version requirement to >=2.10.0,<2.11
- Updated termcolor requirement to >=2.4.0,<3
- Updated wcwidth requirement to >=0.2.13,<0.3
- Updated blessed requirement from Windows to >=1.20.0
- Declared support drop for Python 2.7 and Python < 3.7
- Fixed bug preventing environment creates and updates with JSON ebextensions
- Removed explicit check for Docker installation