[Feature Request]: Support `groupby(group_keys=...)`
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dataframe
dsl
new feature
P2
- Dominant language
- Java
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Description
### What would you like to happen?
We should respect the group_keys argument in groupby.apply. This becomes especially import in pandas 1.5.0 which changes the default behavior.
See https://pandas.pydata.org/pandas-docs/dev/whatsnew/v1.5.0.html#using-group-keys-with-transformers-in-groupby-apply for details.
Blocking #22847
### Issue Priority
Priority: 2
### Issue Component
Component: dsl-dataframe
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