[npm] Bump vfile-message from 2.0.4 to 4.0.2 in /packages/mdsvex

Bumps [vfile-message](https://github.com/vfile/vfile-message) from 2.0.4 to 4.0.2.
- [Release notes](https://github.com/vfile/vfile-message/releases)
- [Commits](vfile/vfile-message@2.0.4...4.0.2)

---
updated-dependencies:
- dependency-name: vfile-message
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

packages/mdsvex/package.json

@@ -68,6 +68,6 @@
 		"@types/unist": "^2.0.3",
 		"prism-svelte": "^0.4.7",
 		"prismjs": "^1.17.1",
-		"vfile-message": "^2.0.4"
+		"vfile-message": "^4.0.2"
 	}
 }