dependabot: bump mistletoe from 1.3.0 to 1.5.1

[dependabot]

Bumps mistletoe from 1.3.0 to 1.5.1.

Release notes

Sourced from mistletoe's releases.

v1.5.1

Fixed

• Parsing slow when there are many table-like lines on input (#254).
• sdist is missing test-requirements.txt (#253).

v1.5.0

Fixed

• LaTeXRenderer: Render thematic break on a new line (#224).
• LaTeXRenderer: Properly escape caret ("^") within raw text (#234).
• Incomplete configuration for tox and tests (#220, #221).
• Add types to __init__.py's markdown function (#251).

Documentation

• Fix typos in the in-line documentation, while also resolving problems within the docs folder (#226).
• Describe Document's constructor and how end-of-lines are treated (#64).

v1.4.0

Added

• Add parent attribute/property (#71 via #206).

  COMPATIBILITY REMARKS:

  • As the children attribute changed to property, existing code needs to be changed like this:

    -hasattr(token, 'children')
    +token.children is not None
    ...
    -'children' in vars(token)
    +token.children is not None
    ...
    -getattr(token, 'children', [])
    +token.children or []

Fixed

• Incomplete sdist content (#219).

Changed

• MarkdownRenderer: Keep the original content spacing before the list marker (#213 via #215).
• Bump build/CI scripts.

Commits

• 71262e1 chore: version 1.5.1
• a008627 build: add test-requirements.txt to sdist (#253)
• b09010c fix: escape earlier from Table check_interrupts_paragraph (#254)
• 70de16b fix: escape early from Table read (#254)
• 0be5adb docs: python -m build doesn't build just the Wheel file
• 0860a86 chore: next dev version
• e1d402e chore: version 1.5.0
• db75055 Add types to init.py's markdown function (#251)
• 31e38f7 docs: describe Document's constructor (#64)
• 52737ce ci: upgrade from deprecated ubuntu-20.04
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)