ENH: Compatible with Pandas 2.1.0

[ChengjieLi28]

What do these changes do?

Related issue number

Fixes #xxxx

Check code requirements

• [ ] tests added / passed (if needed)
• [ ] Ensure all linting tests pass

[codecov[bot]]

Codecov Report

Merging #679 (c2ad076) into main (84b0415) will decrease coverage by 0.05%. The diff coverage is 65.87%.

@@            Coverage Diff             @@
##             main     #679      +/-   ##
==========================================
- Coverage   93.53%   93.49%   -0.05%     
==========================================
  Files        1026     1027       +1     
  Lines       79922    80042     +120     
  Branches    16593    16624      +31     
==========================================
+ Hits        74759    74835      +76     
- Misses       3477     3504      +27     
- Partials     1686     1703      +17     

Flag	Coverage Δ
unittests	93.39% <65.87%> (-0.05%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
...n/xorbits/_mars/dataframe/reduction/aggregation.py	93.57% <ø> (ø)
...hon/xorbits/_mars/dataframe/groupby/aggregation.py	95.91% <25.00%> (+0.17%)	:arrow_up:
python/xorbits/_mars/dataframe/hash_utils.py	65.51% <65.51%> (ø)
python/xorbits/_mars/dataframe/groupby/fill.py	100.00% <100.00%> (ø)
python/xorbits/_mars/dataframe/utils.py	95.46% <100.00%> (+0.01%)	:arrow_up:
python/xorbits/pandas/pandas_adapters/core.py	100.00% <100.00%> (ø)

... and 16 files with indirect coverage changes