docs: Removed class, added polars to the table, str.head and str.tail are a… #3952

Job	Run time
altair (3.12, ubuntu-latest)	2m 0s
marimo (3.12, ubuntu-latest, core,optional)	2m 32s
tea-tasting (3.12, ubuntu-latest)	1m 35s
hierarchicalforecast (3.12, ubuntu-latest)	1m 44s
plotly (3.12, ubuntu-latest)	1m 40s
shiny (3.12, ubuntu-latest)	3m 33s
scikit-lego (3.11, ubuntu-latest)	3m 38s
tubular (3.12, ubuntu-latest)	48s
	17m 30s

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