chore(deps): bump prosemirror-schema-list from 1.4.1 to 1.5.0

Bumps [prosemirror-schema-list](https://github.com/prosemirror/prosemirror-schema-list) from 1.4.1 to 1.5.0.
- [Changelog](https://github.com/ProseMirror/prosemirror-schema-list/blob/master/CHANGELOG.md)
- [Commits](ProseMirror/prosemirror-schema-list@1.4.1...1.5.0)

---
updated-dependencies:
- dependency-name: prosemirror-schema-list
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

packages/markdown/package.json

@@ -48,7 +48,7 @@
     "prosemirror-markdown": "^1.13.1",
     "prosemirror-model": "^1.23.0",
     "prosemirror-schema-basic": "^1.2.3",
-    "prosemirror-schema-list": "^1.4.1",
+    "prosemirror-schema-list": "^1.5.0",
     "prosemirror-state": "^1.4.3",
     "prosemirror-view": "^1.37.1"
   },