chore(deps): bump ember-intl from 6.5.3 to 6.5.4 (#812)

Bumps [ember-intl](https://github.com/ember-intl/ember-intl) from 6.5.3 to 6.5.4.
- [Release notes](https://github.com/ember-intl/ember-intl/releases)
- [Commits](ember-intl/ember-intl@v6.5.3...v6.5.4)

---
updated-dependencies:
- dependency-name: ember-intl
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Diff for: package.json

@@ -55,7 +55,7 @@
     "ember-engines-router-service": "^0.6.0",
     "ember-fetch": "^8.1.2",
     "ember-flatpickr": "^8.0.0",
-    "ember-intl": "^6.5.3",
+    "ember-intl": "^6.5.4",
     "ember-localized-model": "^3.2.2",
     "ember-modifier": "^4.1.0",
     "ember-promise-helpers": "^2.0.0",