Bump utf-8-validate from 6.0.5 to 6.0.6

Bumps [utf-8-validate](https://github.com/websockets/utf-8-validate) from 6.0.5 to 6.0.6.
- [Release notes](https://github.com/websockets/utf-8-validate/releases)
- [Commits](websockets/utf-8-validate@v6.0.5...v6.0.6)

---
updated-dependencies:
- dependency-name: utf-8-validate
  dependency-version: 6.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -28,7 +28,7 @@
   },
   "optionalDependencies": {
     "bufferutil": "^4.0.9",
-    "utf-8-validate": "^6.0.5"
+    "utf-8-validate": "^6.0.6"
   },
   "private": true
 }