Inconsistent metadata schema in association catalogs

Bug report

The generate_data.ipynb notebook generates an association catalog with the following schema:

pa.schema(
        [
            pa.field("Norder", pa.int64()),
            pa.field("Npix", pa.int64()),
            pa.field("join_Norder", pa.int64()),
            pa.field("join_Npix", pa.int64())
        ]
)

It seems like the column data types are all being inferred to int64, when *_Norder should be of type uint8 and *_Npix of type uint64. Specifying the schema when creating the record batches from arrays should solve this issue: https://github.com/astronomy-commons/hipscat/blob/047600e667191af000337b446f7c24fd37a6b0eb/src/hipscat/catalog/association_catalog/partition_join_info.py#L93-L101

Before submitting Please check the following:

[X] I have described the situation in which the bug arose, including what code was executed, information about my environment, and any applicable data others will need to reproduce the problem.
[X] I have included available evidence of the unexpected behavior (including error messages, screenshots, and/or plots) as well as a descriprion of what I expected instead.
[X] If I have a solution in mind, I have provided an explanation and/or pseudocode and/or task list.

astronomy-commons / hipscat

Inconsistent metadata schema in association catalogs #314