clean build fails due to strict version requirements for pandas vs py-ard pandas

[mmaiers-nmdp]

a clean build leads to a version conflict for pandas.

In general it would be nice to use >= for some of these libraries (e.g. py-ard) to get fixes

The conflict is caused by:
    The user requested pandas==1.0.1
    py-ard 0.6.1 depends on pandas>=1.1.4

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

ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts

[rsajulga-nmdp]

Attempted to address this via #3