Bump markdown-it from 12.2.0 to 12.3.0 (#391)

Bumps [markdown-it](https://github.com/markdown-it/markdown-it) from 12.2.0 to 12.3.0.
- [Release notes](https://github.com/markdown-it/markdown-it/releases)
- [Changelog](https://github.com/markdown-it/markdown-it/blob/master/CHANGELOG.md)
- [Commits](https://github.com/markdown-it/markdown-it/compare/12.2.0...12.3.0)

---
updated-dependencies:
- dependency-name: markdown-it
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

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

web/package.json

@@ -16,7 +16,7 @@
     "classnames": "^2.3.1",
     "date-fns": "^2.27.0",
     "lodash": "^4.17.21",
-    "markdown-it": "^12.2.0",
+    "markdown-it": "^12.3.0",
     "next": "^12.0.7",
     "prop-types": "^15.7.2",
     "rc-util": "^5.16.1",