minimum pyarrow version enforced even if pandas is installed

[mattijn]

The error we are facing in an environment says:

RuntimeError: The pyarrow package must be version 11.0.0 or greater. Found version 6.0.1

And is caused by these lines:
https://github.com/altair-viz/altair/blob/main/altair/utils/core.py#L591-L592

    # if data is specified and type is not, infer type from data
    if "type" not in attrs:
        if pyarrow_available() and data is not None and isinstance(data, DataFrameLike):
            ...

        elif isinstance(data, pd.DataFrame):
            # Fallback if pyarrow is not installed or if pandas is older than 1.5

In that particular environment pandas is installed by default and we are not able to upgrade pyarrow.

Now the altair specifications errors as the code never tries the pandas approach as it has found a pyarrow version that is too old.