build(deps): bump @feathersjs/errors from 5.0.20 to 5.0.21

Bumps [@feathersjs/errors](https://github.com/feathersjs/feathers/tree/HEAD/packages/errors) from 5.0.20 to 5.0.21.
- [Release notes](https://github.com/feathersjs/feathers/releases)
- [Changelog](https://github.com/feathersjs/feathers/blob/dove/packages/errors/CHANGELOG.md)
- [Commits](https://github.com/feathersjs/feathers/commits/v5.0.21/packages/errors)

---
updated-dependencies:
- dependency-name: "@feathersjs/errors"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -46,7 +46,7 @@
   "dependencies": {
     "@feathersjs/adapter-commons": "5.0.20",
     "@feathersjs/commons": "5.0.20",
-    "@feathersjs/errors": "5.0.20"
+    "@feathersjs/errors": "5.0.21"
   },
   "devDependencies": {
     "@feathersjs/adapter-tests": "5.0.20",