ruff

33c8c756 - [`pandas-vet`] Deprecate `pandas-df-variable-name` (`PD901`) (#18618)

[`pandas-vet`] Deprecate `pandas-df-variable-name` (`PD901`) (#18618) Summary -- Deprecates PD901 as part of #7710. I don't feel particularly strongly about this one, though I have certainly used `df` as a dataframe name in the past, just going through the open issues in the 0.12 milestone. Test Plan -- N/a