Merge pull request #311 from Venkat-Kunaparaju/mypy

Use mypy version 2.1.0 instead of latest version

Author: wizhaoredhat

requirements-devel.txt

@@ -1,7 +1,7 @@
 -r requirements.txt
 black
 flake8
-mypy
+mypy==2.1.0
 pytest
 types-PyYAML
 types-paramiko