Bump eslint-plugin-ember from 6.2.0 to 6.3.0

Bumps [eslint-plugin-ember](https://github.com/ember-cli/eslint-plugin-ember) from 6.2.0 to 6.3.0.
- [Release notes](https://github.com/ember-cli/eslint-plugin-ember/releases)
- [Changelog](https://github.com/ember-cli/eslint-plugin-ember/blob/master/CHANGELOG.md)
- [Commits](ember-cli/eslint-plugin-ember@v6.2.0...v6.3.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support

package-lock.json

@@ -66,7 +66,7 @@
     "ember-welcome-page": "^3.2.0",
     "eslint": "^5.15.2",
     "eslint-config-airbnb-base": "^13.0.0",
-    "eslint-plugin-ember": "^6.2.0",
+    "eslint-plugin-ember": "^6.3.0",
     "eslint-plugin-import": "^2.16.0",
     "guidemaker": "^1.3.0",
     "guidemaker-ember-template": "^1.0.0",