Upgrade Scikit Learn version requirement

[zhenlu1]

Is your feature request related to a problem? Please describe.
It is hard to use the package together with other packages, since causalml requires scikit-learn<=1.0.2, and it usually have conflicts with other packages.

Describe the solution you'd like
Can we upgrade the scikit-learn requirement if is possible?

Describe alternatives you've considered
N/A

Additional context
N/A

[ras44]

@zhenlu1 can you provide a reproducible example to work with?

[ras44]

@jeongyoonlee I think this might be resolved given #686

[jeongyoonlee]

Closing this as it's resolved in #686.