[PD010] - False positives with polarsdataframes

[jlopezpena]

ruff version 0.7.3, pandas linting rules PD can trigger when dealing with objects from other libraries, like polars.

Minimal example:

import polars as pl

pl_df = pl.DataFrame([{"a": 1, "b": 2}, {"a": 3, "b": 4}])
pl_df.pivot(on="a", values="b")

This code raises a warning for rule [PD010](https://docs.astral.sh/ruff/rules/pandas-use-of-dot-pivot-or-unstack):

`.pivot_table` is preferred to `.pivot` or `.unstack`; provides same functionality

The warning is invalid, because the dataframe is not a pandas dataframe (and polars does not even have a pivot_table method!)

[jlopezpena]

duplicate of #6432