chore(deps): update pymdown-extensions requirement from >=12.1 to >=12.2 in /docs

[dependabot]

Updates the requirements on pymdown-extensions to permit the latest version.

Release notes

Sourced from pymdown-extensions's releases.

12.2

• NEW: Add official support for Python 3.15.
• NEW: Tilde, Caret: For backwards compatibility, disable CommonMark punctuation rules by default. If subscript or superscript is disabled in the respective extension, CommonMark rules will be honored again. A new punctuation rule has been added to force CommonMark rules. When done, people will need to be aware of punctuation when subscript or superscript is enabled and escape any that violates CommonMark rules.
• NEW: Highlight: Highlight now allows in the auto_title_map specifying the title as a simple string or a dictionary containing the title and the title mode: either text or html, with text being the default. This allows a title to be specified and treated as HTML when the mode is html.
• NEW: SuperFences: Add new title_mode option for Pygments fenced blocks that allows a user to specify a title to be treated as HTML via title_mode="html".

Commits

• a656909 Docs: Fix duplicate word
• 0b90546 Revert "Fix lint"
• 11fbe9f Revert "Drop Python 3.10 support"
• 3b5e585 Docs: Fix grammar
• 91ec2a8 Docs: Fix default admonition/details styling
• 5d7efe4 Docs: update js dependencies
• 195228a Fix lint
• ff07dc2 Drop Python 3.10 support
• 848c502 Add title mode configuration to SuperFences and Highlight
• 881c052 Tilde/Caret punctuation rule adjustments (#2986)
• Additional commits viewable in compare view

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