chore(deps): bump prosemirror-model from 1.21.0 to 1.21.1 (#7014)

Bumps [prosemirror-model](https://github.com/prosemirror/prosemirror-model) from 1.21.0 to 1.21.1.
- [Changelog](https://github.com/ProseMirror/prosemirror-model/blob/master/CHANGELOG.md)
- [Commits](https://github.com/prosemirror/prosemirror-model/compare/1.21.0...1.21.1)

---
updated-dependencies:
- dependency-name: prosemirror-model
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -178,7 +178,7 @@
     "prosemirror-inputrules": "^1.3.0",
     "prosemirror-keymap": "^1.2.2",
     "prosemirror-markdown": "^1.13.0",
-    "prosemirror-model": "^1.21.0",
+    "prosemirror-model": "^1.21.1",
     "prosemirror-schema-list": "^1.3.0",
     "prosemirror-state": "^1.4.3",
     "prosemirror-tables": "^1.3.7",