Bump @tiptap/pm from 2.25.0 to 2.26.1

Bumps [@tiptap/pm](https://github.com/ueberdosis/tiptap/tree/HEAD/packages/pm) from 2.25.0 to 2.26.1.
- [Release notes](https://github.com/ueberdosis/tiptap/releases)
- [Changelog](https://github.com/ueberdosis/tiptap/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/ueberdosis/tiptap/commits/HEAD/packages/pm)

---
updated-dependencies:
- dependency-name: "@tiptap/pm"
  dependency-version: 2.26.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]