Remove ember-source and glimmer tracking as a peer dependency (#550)

Author: mkszepp

ember-power-calendar/package.json

@@ -111,9 +111,7 @@
   "peerDependencies": {
     "@ember/test-helpers": "^2.9.4 || ^3.2.1 || ^4.0.4 || ^5.0.0",
     "@glimmer/component": "^1.1.2 || ^2.0.0",
-    "@glimmer/tracking": "^1.1.2",
-    "ember-concurrency": "^4.0.2",
-    "ember-source": "^3.28.0 || ^4.0.0 || >=5.0.0"
+    "ember-concurrency": "^4.0.2"
   },
   "ember": {
     "edition": "octane"