[BUG] Missing support for double quotes to escape

[MitchellGale]

What is the bug?
Strings that are surrounded by and contain two quotes of the same type should be reduced down.

How can one reproduce the bug?
Steps to reproduce the behavior:
Run query
SELECT 'I''m';

What is the expected behavior?
Should result in string
I'm

Example of incorrect query

opensearchsql> SELECT 'I''m';                                                                                                                                                      
fetched rows / total rows = 1/1
+----------+
| 'I''m'   |
|----------|
| I''m     |
+----------+