Update dependency ember-exam to v10

Author: renovate[bot]

package.json

@@ -99,7 +99,7 @@
     "ember-disable-prototype-extensions": "1.1.3",
     "ember-error-route": "0.2.0",
     "ember-event-helpers": "0.1.1",
-    "ember-exam": "9.1.0",
+    "ember-exam": "10.0.0",
     "ember-inflector": "6.0.0",
     "ember-keyboard": "9.0.3",
     "ember-link": "3.5.0",