[Dependabot]: Update sphinxcontrib-mermaid requirement from ~=2.0 to ~=2.1

[dependabot]

Updates the requirements on sphinxcontrib-mermaid to permit the latest version.

Changelog

Sourced from sphinxcontrib-mermaid's changelog.

2.1.0 (July 18, 2026)

• Add mermaid_config option for passing a global Mermaid configuration (#215)
• Load the ZenUML plugin lazily, only on pages that contain a ZenUML diagram, and confine its injected stylesheet to the diagram subtree so it no longer restyles the host theme (#252)
• Skip injecting the Mermaid JavaScript when the output format does not support it (#253)
• Fix d3 zoom on nested SVGs (#179)
• Fix fullscreen button positioning inconsistency (#225)
• Fix interactions between the fullscreen, zoom, and lazy-render features (#254)

2.0.3 (July 7, 2026)

• Capture mmdc error message as string for nicer error display
• Fix local JS module imports on root-level pages by ensuring a valid relative ES module specifier (#246)
• Defer rendering of Mermaid diagrams hidden by a parent (e.g. Reveal.js slides, unopened tabs) until they become visible, fixing broken SVGs

2.0.2 (April 30, 2026)

• Add mermaid_dark_theme and mermaid_light_theme config options for configurable theme switching
• Resolve local Mermaid/ELK/ZenUML/D3 JS paths under html_static_path

2.0.1 (March 5, 2026)

• Export runMermaid to window for hot reloading frontend
• Small fixes for docs publishing

2.0.0 (January 13, 2026)

• Drop support for Python 3.8 and 3.9
• Add support for dynamic theme changes

1.2.3 (November 25, 2025)

• Fix issue with ELK charts by upgrading to ELK plugin 0.2.0

1.2.2 (November 23, 2025)

• Hotfix for CSS/JS assets included via old MANIFEST mechanism

1.2.1 (November 23, 2025)

• Adjust chart size defaults to closer resember previous
• Fix issue with fullscreen classes after rebase

1.2.0 (November 23, 2025)

• Normalize javascript across various configuration options
• Make graph full width and avoid unused margins in graph image
• Rename fullscreen container class from mermaid-fullscreen-content to mermaid-container-fullscreen

... (truncated)

Commits

• 6d7611b Merge pull request #257 from mgaitan/tkp/210
• c53952b Bump version to 2.1.0
• c5bfe4a Merge pull request #256 from timkpaine/tkp/escape-generated-javascript
• 7244a8c Escape generated JavaScript values
• f4cf3e6 Merge pull request #254 from timkpaine/tkp/recent-integration-fixes
• e96f80c fix(html): Correct Mermaid feature interactions
• 2395a38 Merge pull request #225 from yarikoptic/bf-fullscreen
• e0178bd Merge pull request #253 from timkpaine/tkp/pr-132-skip-static-js
• c5bafdb test(fullscreen): Cover button positioning
• c09d852 Fix fullscreen button positioning inconsistency
• Additional commits viewable in compare view

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[dependabot]

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