Add test for capitalization collations

[RubenCerna2079]

Need to add new tests related to collations based on capitalization. Related to main issue #1535.

Some examples of this would be to ensure it works with both cases SELECT json_agg(to_jsonb(table0)) FROM (SELECT title FROM books ORDER BY title asc) as table0 and SELECT json_agg(to_jsonb(table0)) FROM (SELECT TITLE FROM BOOKS ORDER BY TITLE asc) as table0.

[seantleonard]

might be helpful have an example of what you want to test