Bump ember-source from 3.23.1 to 3.25.0 (#138)

Bumps [ember-source](https://github.com/emberjs/ember.js) from 3.23.1 to 3.25.0.
- [Release notes](https://github.com/emberjs/ember.js/releases)
- [Changelog](https://github.com/emberjs/ember.js/blob/master/CHANGELOG.md)
- [Commits](emberjs/ember.js@v3.23.1...v3.25.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -62,7 +62,7 @@
     "ember-maybe-import-regenerator": "0.1.6",
     "ember-qunit": "4.6.0",
     "ember-resolver": "8.0.2",
-    "ember-source": "3.23.1",
+    "ember-source": "3.25.0",
     "ember-source-channel-url": "3.0.0",
     "ember-try": "1.4.0",
     "eslint-plugin-ember": "9.6.0",