Character literals are formatted incorrectly

[Mihyaeru]

A character literal ?" should be formatted to '"' but is actually converted to '\"'. This breaks the behavior of the code.

The string literal "\"" converted in the absence of --plugins=plugin/single_quotes is correct, so this case may not be taken into account.

Environment:

• Ruby: 3.1.4
• SyntaxTree: 6.1.1
• --plugins=plugin/single_quotes