feat: python3.11 support

[ichintanjoshi]

Description

This PR contains changes for upgrading python 3.8 to python 3.11.
Changes include :-

• Dependencies and version upgrades
• Extra check for factorial function to get only integers
  • This is done because evaluator function in calc.py file will convert all numbers to float
  • And python 3.11 will not allow math.factorial to calculate float values and will raise an error ref
• Removal of float numbers for factorial function tests (Same explanation as above)

Done as a part of this issue openedx/public-engineering#233

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