chore(deps): update dependency conventional-changelog-ember to v3 (#456)

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

Author: renovate[bot]

package-lock.json

@@ -30,7 +30,7 @@
     "c8": "7.14.0",
     "conventional-changelog-atom": "3.0.0",
     "conventional-changelog-conventionalcommits": "6.0.0",
-    "conventional-changelog-ember": "2.0.9",
+    "conventional-changelog-ember": "3.0.0",
     "conventional-changelog-eslint": "3.0.9",
     "conventional-changelog-express": "2.0.6",
     "conventional-changelog-jshint": "2.0.9",