[DEPS]: Bump @wordpress/blocks from 13.10.0 to 14.3.0

Bumps [@wordpress/blocks](https://github.com/WordPress/gutenberg/tree/HEAD/packages/blocks) from 13.10.0 to 14.3.0.
- [Release notes](https://github.com/WordPress/gutenberg/releases)
- [Changelog](https://github.com/WordPress/gutenberg/blob/trunk/packages/blocks/CHANGELOG.md)
- [Commits](https://github.com/WordPress/gutenberg/commits/@wordpress/blocks@14.3.0/packages/blocks)

---
updated-dependencies:
- dependency-name: "@wordpress/blocks"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

wp-content/themes/boxuk/package.json

@@ -31,7 +31,7 @@
 		"@types/wordpress__blocks": "^12.5.14",
 		"@types/wordpress__editor": "^13.6.8",
 		"@wordpress/block-editor": "^14.8.0",
-		"@wordpress/blocks": "^13.9.0",
+		"@wordpress/blocks": "^14.3.0",
 		"@wordpress/dom-ready": "^4.13.0",
 		"@wordpress/editor": "^14.6.0",
 		"@wordpress/icons": "^10.13.0",