Bump eslint-plugin-ember from 12.1.1 to 12.7.3

Bumps [eslint-plugin-ember](https://github.com/ember-cli/eslint-plugin-ember) from 12.1.1 to 12.7.3.
- [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](https://github.com/ember-cli/eslint-plugin-ember/commits)

---
updated-dependencies:
- dependency-name: eslint-plugin-ember
  dependency-version: 12.7.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -244,7 +244,7 @@
     "eslint-plugin-cypress": "^3.5.0",
     "eslint-plugin-deprecation": "^3.0.0",
     "eslint-plugin-diff": "^2.0.3",
-    "eslint-plugin-ember": "^12.1.0",
+    "eslint-plugin-ember": "^12.7.3",
     "eslint-plugin-ember-suave": "^2.0.1",
     "eslint-plugin-es-x": "^7.8.0",
     "eslint-plugin-eslint-plugin": "^6.1.0",