docs: fix docstring Args entries that name a parameter the function does not take

[darkdi]

Forty Args: entries name a parameter the function does not take. Docstrings only — no signature, no behaviour, no test touched.

The largest group is in io_descriptors. Every _from_sample there takes exactly (self, sample), but the docstrings still list the constructor keywords alongside it — enforce_dtype, enforce_shape, apply_column_names, orient, default_format, pilmode, mime_type, allowed_mime_types, kind, json_encoder, **kwargs. In PandasSeries._from_sample the one real argument was documented under the old name sample_input, so that became sample rather than being dropped.

Also in io_descriptors: all three from_proto methods take field but document request and context, and both _to_proto_impl methods document a context they do not receive.

Ten are renames:

Where	Documented	Actual
from_proto (numpy, pandas ×2)	request	field
PandasSeries._from_sample	sample_input	sample
ModelAPI.get	tag	name
fastai.save_model	learner	learner_
pytorch_lightning.load_model, torchscript.load_model	tag	bentoml_model
Model.to_runner	runnable_method_configs	method_configs
host_bento	bento	bento_name

The rest document something that is not an argument: model_store on the two pytorch_lightning entry points, backend on OCIBuilder.__init__, grpc on get_metrics_report, columns and apply_column_names on the PandasSeries class, and tag on import_bento and import_model — the last two copied from the matching export_* functions, which do take a tag.

Every entry was opened and read against its signature. ruff check and ruff format --check pass on all sixteen files with the pinned ruff==0.15.12 from .pre-commit-config.yaml.