BUG, DEPR, PERF: GroupBy aggregations
The BUG is failing to raise for dt64/period 'var'
The DEPR is for Groupby.any/all, which we already deprecated for Series/DataFrame with these dtypes
The PERF is for Categorical dtype raising cases, raising directly instead of going through the (copy-making) agg_py_fallback path
Thanks @jbrockmendel 