Bump regexp_parser from 2.12.0 to 2.13.1

[dependabot]

Bumps regexp_parser from 2.12.0 to 2.13.1.

Changelog

Sourced from regexp_parser's changelog.

[2.13.1] - 2026-09-28 - Janosch Müller

Fixed

• support lone \p expressions and scan them as escaped literal (#111)
  • match Ruby's behavior, which only warns for \p without a curly bracket
  • thanks to Jason Barnabe for the report

[2.13.0] - 2026-09-21 - Janosch Müller

Added

• greatly improved scanning, lexing, and parsing performance
  • ~5x for a single-expression patterns, ~2x for a 500-expression pattern
• improved performance of #each_expression and #traverse
• greatly improved performance when comparing parse results (via #==)
• improved scanner error messages for invalid patterns, e.g. '\xZ'

Fixed

• SystemStackError when parsing or traversing very deeply nested trees (#109)
• minor memory leak when accepting arbitrary user input as syntax version (#109)
• #match_length now respects the quantifier of backrefs and subexp calls (#107)
• #match_length now handles backref/subexp call multiplexing (#107)
• thanks to Oskar Eichler for reporting these

Commits

• c0f4098 Release v2.13.1
• 5e4ba3b Handle lone \p, fixes #111
• a706d28 Release v2.13.0
• 9364abd Update year [ci skip]
• 495b2c4 Merge pull request #110 from ammar/improve-performance-and-memory-use
• 6aa5f4d Improve performance and prevent SystemStackError
• 4fedf0c Remove redundant gemspec metadata ...
• 13c9b53 Remove unnecessary load path pollution
• 9396d6a Omit platform from gemspec ...
• ed1db74 Omit Gemfile, Rakefile, rl files from bundled gem
• Additional commits viewable in compare view

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