chore(deps): bump ember-element-helper from 0.6.1 to 0.8.4

Bumps [ember-element-helper](https://github.com/tildeio/ember-element-helper) from 0.6.1 to 0.8.4.
- [Release notes](https://github.com/tildeio/ember-element-helper/releases)
- [Changelog](https://github.com/tildeio/ember-element-helper/blob/main/CHANGELOG.md)
- [Commits](tildeio/ember-element-helper@v0.6.1...v0.8.4)

---
updated-dependencies:
- dependency-name: ember-element-helper
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

ember-prismic-dom/package.json

@@ -28,7 +28,7 @@
   "dependencies": {
     "@embroider/addon-shim": "^1.0.0",
     "@prismicio/richtext": "^1.1.0",
-    "ember-element-helper": "^0.6.1"
+    "ember-element-helper": "^0.8.4"
   },
   "devDependencies": {
     "@babel/core": "7.21.3",