Merge pull request #911 from ember-learn/percy

update percy

Author: mansona

package.json

@@ -33,8 +33,8 @@
     "@glimmer/tracking": "^1.1.2",
     "@glint/core": "^0.9.7",
     "@glint/environment-ember-loose": "^0.9.7",
-    "@percy/cli": "^1.14.0",
-    "@percy/ember": "^3.0.1",
+    "@percy/cli": "^1.28.7",
+    "@percy/ember": "^4.2.0",
     "@tsconfig/ember": "^1.0.1",
     "@types/ember": "^4.0.2",
     "@types/ember-qunit": "^5.0.2",