rdoc 7.1.0 on Ruby Gems

What's Changed

Support GitHub style markdown heading anchor and link reference by @st0012 in #1540
Allow using backticks to quote text in RDoc markup too by @st0012 in #1551

Fix comment_location for merged ClassModule by @tompng in #1531
Prevent style rendering in code blocks by @st0012 in #1536
Improve code block language detection by @st0012 in #1538
Fix Markdown strikethrough (~~text~~) not rendering in HTML output by @st0012 in #1541
Define Markup::Heading as a struct on rubies older than v4.0.0 by @vinistock in #1549
Fix cross-reference resolution for constants by @extern-c in #1539

Rebuild RDoc markup documentation by @st0012 in #1542
[DOC] Remove italic bold styling inside codeblock by @tompng in #1552
Use playwright MCP as the recommended way to test RDoc end to end by @st0012 in #1545
Fix broken RDoc Markup Reference links in RDoc::Markup by @extern-c in #1560

Bump ruby/setup-ruby from 1.275.0 to 1.276.0 by @dependabot[bot] in #1534
Simplify newline handling of comment token in TokenStream#to_html by @tompng in #1532
Bump setup-ruby to the latest release by @st0012 in #1543
Use class for highlight selector by @st0012 in #1546
Align strikethrough support with GitHub Markdown by @st0012 in #1548
Bump ruby/setup-ruby from 1.278.0 to 1.281.0 by @dependabot[bot] in #1561
Bump version to v7.1.0 by @vinistock in #1562

Full Changelog: v7.0.3...v7.1.0