Loosen Pandas requirement to 1.4

[SeanBarry]

Is your feature request related to a problem? Please describe. Some users are using older Pandas versions and are facing issues with the current version requirements.

https://github.com/VorTECHsa/python-sdk/issues/514#issuecomment-2507856552

Describe the solution you'd like Loose the requirement to be pandas>=1.4