Bump markdown from 3.7 to 3.8 in /requirements

[dependabot]

Bumps markdown from 3.7 to 3.8.

Release notes

Sourced from markdown's releases.

Release 3.8

Changed

• DRY fix in abbr extension by introducing method create_element (#1483).
• Clean up test directory by removing some redundant tests and port non-redundant cases to the newer test framework.
• Improved performance of the raw HTML post-processor (#1510).

Fixed

• Backslash Unescape IDs set via attr_list on toc (#1493).
• Ensure md_in_html processes content inside "markdown" blocks as they are parsed outside of "markdown" blocks to keep things more consistent for third-party extensions (#1503).
• md_in_html handle tags within inline code blocks better (#1075).
• md_in_html fix handling of one-liner block HTML handling (#1074).
• Ensure <center> is treated like a block-level element (#1481).
• Ensure that abbr extension respects AtomicString and does not process perceived abbreviations in these strings (#1512).
• Ensure smarty extension correctly renders nested closing quotes (#1514).

Changelog

Sourced from markdown's changelog.

title: Changelog toc_depth: 2

Python-Markdown Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning. See the Contributing Guide for details.

[3.8.0] - 2025-04-09

Changed

• DRY fix in abbr extension by introducing method create_element (#1483).
• Clean up test directory by removing some redundant tests and port non-redundant cases to the newer test framework.
• Improved performance of the raw HTML post-processor (#1510).

Fixed

• Backslash Unescape IDs set via attr_list on toc (#1493).
• Ensure md_in_html processes content inside "markdown" blocks as they are parsed outside of "markdown" blocks to keep things more consistent for third-party extensions (#1503).
• md_in_html handle tags within inline code blocks better (#1075).
• md_in_html fix handling of one-liner block HTML handling (#1074).
• Ensure <center> is treated like a block-level element (#1481).
• Ensure that abbr extension respects AtomicString and does not process perceived abbreviations in these strings (#1512).
• Ensure smarty extension correctly renders nested closing quotes (#1514).

[3.7.0] - 2024-08-16

Changed

• Refactor abbr Extension

  A new AbbrTreeprocessor has been introduced, which replaces the now deprecated AbbrInlineProcessor. Abbreviation processing now happens after Attribute Lists, avoiding a conflict between the two extensions (#1460).

  The AbbrPreprocessor class has been renamed to AbbrBlockprocessor, which better reflects what it is. AbbrPreprocessor has been deprecated.

  A call to Markdown.reset() now clears all previously defined abbreviations.

  Abbreviations are now sorted by length before executing AbbrTreeprocessor to ensure that multi-word abbreviations are implemented even if an abbreviation

... (truncated)

Commits

• b34e1d0 Bump version to 3.8
• e6b7163 Update deploy workflow to normalize version
• bd67d48 Improve changelog validation
• e912575 Fix incorrect TOC list structure in docs
• 42d4b43 Fix CI badge in README
• 1caf028 Optimize raw HTML post-processor (#1510)
• f6cfc5c Use PEP 639 license expressions in project metadata
• 9c6e39a Add Python 3.13 and drop Python 3.8
• 7aae61b Add special case for closing nested quotes
• 0ad5b0a Abbr should respect AtomicStrings
• Additional commits viewable in compare view

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