chore(deps-dev): bump ember-template-lint from 1.8.0 to 1.8.1

Bumps [ember-template-lint](https://github.com/rwjblue/ember-template-lint) from 1.8.0 to 1.8.1.
- [Release notes](https://github.com/rwjblue/ember-template-lint/releases)
- [Changelog](https://github.com/ember-template-lint/ember-template-lint/blob/master/CHANGELOG.md)
- [Commits](rwjblue/ember-template-lint@v1.8.0...v1.8.1)

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

yarn.lock

@@ -3703,9 +3703,9 @@ ember-source@~3.14.0:
     silent-error "^1.1.1"
 
 ember-template-lint@^1.0.0-beta.6:
-  version "1.8.0"
-  resolved "https://registry.yarnpkg.com/ember-template-lint/-/ember-template-lint-1.8.0.tgz#78e37ef1dc0aa865aa65c0e6b36ecd405f6213de"
-  integrity sha512-2W0beWl/aX54ctGzsnfQijWFQ+TIO92UiMdVjPo7tFNzCmxZrG76E8fM0oAS1iGIXWhvP23p0Xoe8TIbOmTg7A==
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/ember-template-lint/-/ember-template-lint-1.8.1.tgz#017f7c9d55faae8478932108e86bef7537804237"
+  integrity sha512-IhZWaQACOwTgcprUIv8OmfUCgSg7MiylxlaGorBcGWBAPyydUj9wh/3/9wGOEsG/GRmA+eGjx3kVYO8636N8pw==
   dependencies:
     "@glimmer/syntax" "^0.43.0"
     chalk "^2.0.0"