Bump linkify-it-py from 2.0.2 to 2.0.3 in /docs (#351)

Bumps [linkify-it-py](https://github.com/tsutsu3/linkify-it-py) from 2.0.2 to 2.0.3.
- [Release notes](https://github.com/tsutsu3/linkify-it-py/releases)
- [Changelog](https://github.com/tsutsu3/linkify-it-py/blob/main/CHANGELOG.md)
- [Commits](tsutsu3/linkify-it-py@v2.0.2...v2.0.3)

---
updated-dependencies:
- dependency-name: linkify-it-py
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/requirements.txt

@@ -4,4 +4,4 @@ sphinx-click==5.1.0
 sphinx-copybutton==0.5.2
 # myst-nb==0.17.2
 myst-nb @ git+https://github.com/executablebooks/MyST-NB@35ebd54
-linkify-it-py==2.0.2
+linkify-it-py==2.0.3