chore(deps-dev): bump ember-template-lint from 1.11.1 to 1.12.0

Bumps [ember-template-lint](https://github.com/ember-template-lint/ember-template-lint) from 1.11.1 to 1.12.0.
- [Release notes](https://github.com/ember-template-lint/ember-template-lint/releases)
- [Changelog](https://github.com/ember-template-lint/ember-template-lint/blob/master/CHANGELOG.md)
- [Commits](ember-template-lint/ember-template-lint@v1.11.1...v1.12.0)

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

yarn.lock

@@ -3804,9 +3804,9 @@ ember-source@~3.15.0:
     silent-error "^1.1.1"
 
 ember-template-lint@^1.0.0-beta.6:
-  version "1.11.1"
-  resolved "https://registry.yarnpkg.com/ember-template-lint/-/ember-template-lint-1.11.1.tgz#fc5579b74537ccb2d6f9b52d254cbb776b966586"
-  integrity sha512-hrw8AjK8RHJM+ypyk8cnWwcw92syl3Zn1FQphfMaYFSl0t2hCzNBCMfuOBfABDJohQzCe6jiFt/cgKhTFsiD/A==
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/ember-template-lint/-/ember-template-lint-1.12.0.tgz#cf7b7650edd0691eb571153d223a845e7367e82c"
+  integrity sha512-PkxcNl/FJ6n7/9/HES47iExXwAO1qROZ4ciqfcdR1N3LkW8YgVA7FhR3f5UCTkEvhUTSWcZUbK2vtEY02AhyIQ==
   dependencies:
     "@glimmer/syntax" "^0.44.0"
     chalk "^2.0.0"