[dtacheck] Update arson-parse to latest commit

[TheNathannator]

Many parsing and diagnostic improvements.

• Errors are now sorted by position and error code, instead of being in an unspecified order.
• Added some additional diagnostics, fixed many cases where errors were not detected or reported properly, and tweaked many error messages to be more informative.
• Validation checks done when reaching the end of the file were unintentionally performed per array nesting, and would result in duplicate diagnostics for outer-nested errors.
• Parsing no longer bails out upon errors in the preprocessing step, so all errors related to parsing are displayed at once.
• Block comment handling no longer tokenizes its contents, and will no longer miss block comment ends that are preceded by delimiters for other tokens.