Update dependency ember-page-title to v9 (#1084)

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

Author: renovate[bot]

package-lock.json

@@ -78,7 +78,7 @@
     "ember-load-initializers": "3.0.1",
     "ember-math-helpers": "4.2.1",
     "ember-modifier": "4.2.0",
-    "ember-page-title": "8.2.4",
+    "ember-page-title": "9.0.1",
     "ember-power-calendar": "1.5.2",
     "ember-power-calendar-luxon": "2.0.0",
     "ember-qunit": "7.0.0",