chore(test-esa): remove ember-data (#3009)

* chore(test-esa): remove ember-data, its unused

* chore: use ember-data 5.3.0 as minimum across the board

* chore(test-app): import ember-data string transform

Author: BobrImperator

packages/test-app/app/transforms/string.js

@@ -0,0 +1 @@
+export { StringTransform as default } from '@ember-data/serializer/transform';

packages/test-esa/app/components/.gitkeep

@@ -21,7 +21,7 @@ module.exports = function () {
             devDependencies: {
               'ember-cli': '~4.12.0',
               'ember-source': '~4.12.0',
-              'ember-data': '~4.12.1',
+              'ember-data': '~5.3.0',
             },
           },
         },

packages/test-esa/app/controllers/.gitkeep

@@ -44,7 +44,6 @@
     "ember-cli-inject-live-reload": "2.1.0",
     "ember-cli-sri": "2.1.1",
     "ember-cli-terser": "4.0.2",
-    "ember-data": "5.7.0",
     "ember-disable-prototype-extensions": "1.1.3",
     "ember-engines": "0.12.0",
     "ember-load-initializers": "2.1.2",