[FIX] requirements-core.txt: Raise minimum pandas version to 2.0.*

[ales-erjavec]

Issue

Orange.widgets.data.tests.test_oweditdomain.TestReinterpretTransforms.test_reinterpret_string is failing on oldest test since #7182 or rather would have failed if the tests were actually run.

It fails because guess_datetime_format("2010") does not infer %Y format prior to 2.0

Description of changes

Raise pandas requirement to 2.0.1

Includes

• Code changes
• Tests
• Documentation

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.92%. Comparing base (cd252e3) to head (756a44f).
⚠️ Report is 92 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #7203   +/-   ##
=======================================
  Coverage   88.92%   88.92%           
=======================================
  Files         335      335           
  Lines       74191    74191           
=======================================
+ Hits        65972    65975    +3     
+ Misses       8219     8216    -3     

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