feat: add support for listing arima, automl, boosted tree, DNN, and matrix factorization models

[yoshi-automation]

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Closes #293

PiperOrigin-RevId: 337113354
Source-Link: googleapis/googleapis@215c12a

[tswast]

Test failure was

____________________ test_all_gapic_enum_members_are_known _____________________

module_under_test = <module 'google.cloud.bigquery.enums' from '/tmpfs/src/github/python-bigquery/google/cloud/bigquery/enums.py'>
gapic_enum = <enum 'TypeKind'>

    def test_all_gapic_enum_members_are_known(module_under_test, gapic_enum):
        gapic_names = set(type_.name for type_ in gapic_enum)
        anticipated_names = (
            module_under_test._SQL_SCALAR_TYPES | module_under_test._SQL_NONSCALAR_TYPES
        )
>       assert not (gapic_names - anticipated_names)  # no unhandled names
E       AssertionError: assert not ({'ARRAY', 'BIGNUMERIC', 'BOOL', 'BYTES', 'DATE', 'DATETIME', ...} - frozenset({'ARRAY', 'BOOL', 'BYTES', 'DATE', 'DATETIME', 'FLOAT64', ...}))

tests/unit/enums/test_standard_sql_data_types.py:45: AssertionError

I've pushed an update to enums.py to keep our manual "enum" class (really just string constants) in sync.