Update dependency @embroider/test-setup to v1.8.1

Author: renovate[bot]

package.json

@@ -34,7 +34,7 @@
   "devDependencies": {
     "@ember/optional-features": "2.0.0",
     "@ember/test-helpers": "2.8.1",
-    "@embroider/test-setup": "1.6.0",
+    "@embroider/test-setup": "1.8.1",
     "@glimmer/component": "1.1.2",
     "@glimmer/tracking": "1.1.2",
     "babel-eslint": "10.1.0",

yarn.lock

@@ -1069,10 +1069,10 @@
     semver "^7.3.5"
     typescript-memoize "^1.0.1"
 
-"@embroider/test-setup@1.6.0":
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/@embroider/test-setup/-/test-setup-1.6.0.tgz#91fe3d7a8daeba32de35220d25407ad1df7a0db2"
-  integrity sha512-6U+NsfGL9ubADreLCnOWMCVFpoU4/DzHlbgfEH3NE+rcdF+2WbY8VP+MeqjjccoES0HvhIeUKvoIbiqkoWAbhQ==
+"@embroider/test-setup@1.8.1":
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/@embroider/test-setup/-/test-setup-1.8.1.tgz#d7986c4066e2970ee1e2a0dd779d95d3c823f39b"
+  integrity sha512-pELZvAWbjuJQmCXb2olCEoHYytzVDr84H63IY0VJXK1UdEFeJN1vjjata2n+DPZanj8Le5nm/SuJlkMQQOknZA==
   dependencies:
     lodash "^4.17.21"
     resolve "^1.20.0"