relaxe ansible core venv

The conflict is caused by:
    The user requested ansible-core==2.12.10
    ansible 6.2.0 depends on ansible-core~=2.13.2

To fix this you could try to:
1. loosen the range of package versions you've specified
2. remove package versions to allow pip attempt to solve the dependency conflict

/closes #62

requirements.txt

 ansible==6.2.0
-ansible-core==2.12.10
+ansible-core==2.*
 cffi==1.15.1
 cryptography==38.0.4
 Jinja2==3.1.2