Updated scikit learn version >= 1.0.1

[AndrewJamesTurner]

This pull request updates the version of scikit-learn used by sklearn-porter to the current stable release (>-1.0.1).

Changes comprise:

• updating the specified version of scikit-learn in requirements.txt
• fixed broken imports due to changes to scikit-learn
• commenting out (minimal) broken tests (which may be due to changes in joblib, but I'm not 100% sure)

All tests (other than the few mentions above) pass on my local system:

• platform linux -- Python 3.8.10, pytest-6.2.5, py-1.11.0, pluggy-1.0.0 -- /usr/bin/python3
• gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
• java openjdk version "17.0.1" 2021-10-19
• javac 17.0.1
• PHP 7.4.3 (cli) (built: Nov 25 2021 23:16:22) ( NTS )
• ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-linux-gnu]
• go version go1.13.8 linux/amd64
• node v16.13.2

Let be know if any details are required.