chore(deps): update dependency ember-intl to v7

Author: renovate[bot]

package.json

@@ -65,7 +65,7 @@
     "ember-data": "~3.27.1",
     "ember-fetch": "^8.1.1",
     "ember-file-upload": "^8.0.0",
-    "ember-intl": "^5.7.2",
+    "ember-intl": "^7.3.1",
     "ember-keyboard-shortcuts": "^1.2.0",
     "ember-link-action": "^2.0.4",
     "ember-linkify": "^4.1.2",