fix: dbt-athena types mapping for complex types

[svdimchenko]

Problem statement

I get the following error for complex data types for dbt-athena adapter:

  File "/usr/local/lib/python3.10/site-packages/datahub/ingestion/source/sql/sql_types.py", line 245, in resolve_athena_modified_type
    return ATHENA_SQL_TYPES_MAP[type_string]
KeyError: 'array<string>'

Current PR is fixing the issue.

Checklist

• The PR conforms to DataHub's Contributing Guideline (particularly Commit Message Format)
• Tests for the changes have been added/updated (if applicable)

[hsheth2]

LGTM