Update dependency ember-cli to v6

Author: renovate[bot]

package.json

@@ -44,7 +44,7 @@
     "@glimmer/syntax-0.62.5": "npm:@glimmer/syntax@0.62.5",
     "@glimmer/syntax-0.92.3": "npm:@glimmer/syntax@0.92.3",
     "ember-auto-import": "^2.8.1",
-    "ember-cli": "4.10.0",
+    "ember-cli": "6.10.2",
     "ember-cli-babel": "7.26.11",
     "ember-cli-chai": "0.5.0",
     "ember-cli-dependency-checker": "3.3.1",