deps(dev): bump uint8arrays from 3.1.1 to 4.0.3 (#131)

Bumps [uint8arrays](https://github.com/achingbrain/uint8arrays) from 3.1.1 to 4.0.3.
- [Release notes](https://github.com/achingbrain/uint8arrays/releases)
- [Changelog](https://github.com/achingbrain/uint8arrays/blob/master/CHANGELOG.md)
- [Commits](achingbrain/uint8arrays@v3.1.1...v4.0.3)

---
updated-dependencies:
- dependency-name: uint8arrays
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Alex Potsides <[email protected]>

package.json

@@ -143,7 +143,7 @@
   },
   "devDependencies": {
     "aegir": "^38.1.7",
-    "uint8arrays": "^3.0.0",
+    "uint8arrays": "^4.0.3",
     "util": "^0.12.3"
   }
 }