Add Ember v6 to Peers

Newly released and ready for use!

Author: jrjohnson

package.json

@@ -72,7 +72,7 @@
     "webpack": "^5.65.0"
   },
   "peerDependencies": {
-    "ember-source": "^3.8 || ^4.0.0 || ^5.0.0",
+    "ember-source": "^3.8 || >= 4.0.0",
     "@glint/template": "^1.0.2"
   },
   "peerDependenciesMeta": {