CP-16084 parentheses handling

[niden]

Hello!

• Type: bug fix
• Link to issue: [BUG]: Phalcon\Annotations\Reader crushes when annotation contains unclosed parentheses #16084

In raising this pull request, I confirm the following:

• I have read and understood the Contributing Guidelines
• I have checked that another pull request for this purpose does not exist
• I wrote some tests for this PR
• I have updated the relevant CHANGELOG
• I have created a PR for the documentation about this change

Fixed Phalcon\Annotations\Reader failing to parse a docblock when an annotation argument is a string literal containing a parenthesis (e.g. @SomeAnnotation(key='value(')). The docblock pre-scan that locates each @Annotation(...) span counted every (/), including those inside quoted values, so an unbalanced parenthesis in a string consumed the rest of the comment and produced a "Scanning error". String literals (single- or double-quoted, with escapes) are now skipped while matching parentheses.

Thanks