Update myst-parser requirement from <0.18,>=0.14 to >=0.14,<0.20

[dependabot]

Updates the requirements on myst-parser to permit the latest version.

Release notes

Sourced from myst-parser's releases.

v0.19.0

This release brings a number of exciting new features, improvements, and upgrades 🎉 https://myst-parser.readthedocs.io

• 📚 Rewritten documentation, with a clearer structure, many more examples, rich hover tips, and a new live preview page (powered by pyscript)
  • The code base API is also now fully documented by https://sphinx-autodoc2.readthedocs.io/, which even allows for MyST docstrings!
• ⬆️ Add Sphinx 6 support
• 📄 Extended docutils (single-page) support
• 🔗 Extended Markdown links, including intersphinx support, e.g. [text](https://github.com/executablebooks/MyST-Parser/blob/HEAD/inv:name#target)
• {} New attributes syntax, to extend common Markdown syntaxes, e.g. ![image](https://github.com/executablebooks/MyST-Parser/blob/HEAD/image.png){#id .class width=100px}

For a full list of changes, see: https://github.com/executablebooks/MyST-Parser/blob/master/CHANGELOG.md

Happy parsing! 🤖 Executable books team

Changelog

Sourced from myst-parser's changelog.

0.19.0 - 2023-03-01

This release brings a number of exciting new features, improvements, and upgrades 🎉

Full Changelog: v0.18.1...v0.19.0

📚 Rewritten documentation

The documentation has been almost completely rewritten, with a clearer structure, many more examples, rich hover tips, and a new live preview page ⚡️ (powered by pyscript, gh-pr:717).

The code base API is also now fully documented by sphinx-autodoc2, which even allows for MyST docstrings! (gh-pr:704).

⬆️ Add Sphinx 6 support, drop Sphinx 4

The code base has been updated to support sphinx v6, and is no longer tested against sphinx v4 (gh-pr:664)

📄 Extended docutils (single-page) support

The docutils parser now supports many more features, and improvements to support live previews:

• myst_suppress_warnings option added, mirroring Sphinx, to suppress MyST warnings (gh-pr:655)
• myst_meta_html and myst_substitutions options are now supported (gh-pr:672)
• myst_heading_anchors option is now supported (gh-pr:678)
• Math block labels syntax is now supported (gh-pr:668)
• Missing directive/role errors errors are now suppressable warnings (gh-pr:687)
• Non-fatal directive parsing errors are now suppressable warnings (gh-pr:682)
• Most of the extended markdown syntax below is also supported

🔗 Extended Markdown links

See the Extended Markdown links section for the full guide.

You can now use standard Markdown link syntax to reference many different types of targets, in a more consistent way.

• [text](https://github.com/executablebooks/MyST-Parser/blob/master/relative/path/myfile.md) work as previously, to link to files, but they can also be relative to source directory: [text](https://github.com/executablebooks/MyST-Parser/blob/master/path/from/srcdir/myfile.md). You can also use <project:file.md>
• <path:myfile.txt> will link specifically to a downloadable file
• [text](https://github.com/executablebooks/MyST-Parser/blob/master/#target) or <project:#target> will link (in order of priority) to any local target, local heading anchor, target in the same project, or intersphinx (inventory) target
• [text](https://github.com/executablebooks/MyST-Parser/blob/master/inv:name:domain:type#target) will link specifically to a Sphinx inventory target, or to any inventory <inv:#target>, and can even use * wildcards like <inv:*:*:*#*.target>
  • This can even be used in docutils, with the new myst_inventories config option
  • The myst-inv CLI makes it easy to find the correct inventory target

:::{tip} It is advised (although not immediately necessary) to prefix all internal references with #. For example, [...](https://github.com/executablebooks/MyST-Parser/blob/master/my-reference), should be changed to [...](https://github.com/executablebooks/MyST-Parser/blob/master/#my-reference). :::

{} Attributes syntax

... (truncated)

Commits

• de31423 🚀 RELEASE v0.19.0
• 2cbb184 ✨ NEW: Add path and project link schemes
• 022d397 📚 DOCS: Full update
• 3e06b80 📚 DOCS: Live preview renders theme
• e49b70f 🔧 Add myst-docutils-demo CLI
• 37a830d 👌 Add heading-offset option to include directive
• de00c89 👌 Improve rendering of implicit link text
• f791cea 🔧 Minor update
• 1bd0def 🔧 topmatter -> frontmatter
• 7692f87 ✨ New: add .glossary for attrs_block (#719)
• Additional commits viewable in compare view

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