Bump gutenberg from e63b8b8 to c2bf14f

Bumps [gutenberg](https://github.com/WordPress/gutenberg) from `e63b8b8` to `c2bf14f`.
- [Release notes](https://github.com/WordPress/gutenberg/releases)
- [Commits](WordPress/gutenberg@e63b8b8...c2bf14f)

---
updated-dependencies:
- dependency-name: gutenberg
  dependency-type: direct:production
...

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