Update dependency ember-cli-htmlbars to v7

Author: renovate[bot]

package.json

@@ -46,7 +46,7 @@
     "ember-cli-terser": "4.0.2",
     "ember-data": "5.8.0",
     "ember-disable-prototype-extensions": "1.1.3",
-    "ember-cli-htmlbars": "6.3.0",
+    "ember-cli-htmlbars": "7.0.0",
     "ember-load-initializers": "2.1.2",
     "ember-page-title": "7.0.0",
     "ember-qunit": "9.0.4",