Bump prosemirror-model from 1.11.0 to 1.13.0

Bumps [prosemirror-model](https://github.com/prosemirror/prosemirror-model) from 1.11.0 to 1.13.0.
- [Release notes](https://github.com/prosemirror/prosemirror-model/releases)
- [Changelog](https://github.com/ProseMirror/prosemirror-model/blob/master/CHANGELOG.md)
- [Commits](ProseMirror/prosemirror-model@1.11.0...1.13.0)

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

Author: dependabot[bot]

package-lock.json

@@ -43,7 +43,7 @@
 		"prosemirror-collab": "^1.2.2",
 		"prosemirror-inputrules": "^1.1.2",
 		"prosemirror-markdown": "^1.5.0",
-		"prosemirror-model": "^1.11.0",
+		"prosemirror-model": "^1.13.0",
 		"prosemirror-schema-list": "^1.1.4",
 		"prosemirror-state": "^1.3.3",
 		"prosemirror-transform": "^1.2.8",