Update dependency ember-keyboard to v9 (#9318)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -99,7 +99,7 @@
     "ember-event-helpers": "0.1.1",
     "ember-exam": "9.0.0",
     "ember-fetch": "8.1.2",
-    "ember-keyboard": "8.2.1",
+    "ember-keyboard": "9.0.1",
     "ember-link": "3.2.0",
     "ember-load-initializers": "2.1.2",
     "ember-modifier": "4.2.0",