Bump rdiscount from 2.2.0.1 to 2.2.7.4 in /www

[dependabot]

Bumps rdiscount from 2.2.0.1 to 2.2.7.4.

Changelog

Sourced from rdiscount's changelog.

Version 2.2.7.4 (April 1, 2026)

• Fix crash if to_html called on a string longer than INT_MAX (2 GiB of text).

Version 2.2.7.3 (December 31, 2023)

• Add Ruby 3.2 and 3.3 to continuous integration
• Reinstate fix for compilation issue with Clang 16

Version 2.2.7.2 (December 19, 2023)

• Discount upgraded from 2.2.7c -> 2.2.7d
  • Fix compilation on openSUSE Tumbleweed

Version 2.2.7.1 (June 16, 2023)

• Fix to not filter out <style> tags by default in Markdown output, unless filter_styles is enabled
• Fix compilation issue with Clang 16
• Add TruffleRuby to continuous integration

Version 2.2.7 (October 23, 2022)

• Discount upgraded from 2.2.0 -> 2.2.7c
  • Implement support for :latex
  • Implement support for :explicitlist
• Move CI to GitHub action and fix CI builds (Ruby 2.7 - 3.1)
• Drop support for all EOL Ruby versions (eg > 2.7)
• Fixing conformance tests to run version 1.0 and 1.0.3

Version 2.2.0.2 (August 9, 2020)

• Fix compilation error on macOS Big Sur Preview (11.0).
• Enable continuous integration with Ruby 2.4-2.6.
• Builds with Ruby 2.7.0 locally but not on Travis CI.

Commits

• 28bd917 2.2.7.4 release
• b1a1644 Guard against oversized markdown input before calling mkd_string
• 921379e gitignore: Ignore ext/rdiscount.bundle.dSYM
• 8974bab Rakefile: Exclude ext.diff and CLAUDE.md from gem files
• 8d59aa0 Rakefile: Replace deprecated .exists? with .exist?
• ddb0198 AI Coding: Create plan/ directory
• 593ed1b AI Coding: Add initial instructions/documentation for AI coding agents
• 751ffc9 Continuous Integration: Support manual runs
• 3a0e51a 2.2.7.3 release
• a39f34d Continuous Integration: Add Ruby 3.3
• Additional commits viewable in compare view

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