Bump @ember/test-helpers from 2.2.5 to 2.2.6

Bumps [@ember/test-helpers](https://github.com/emberjs/ember-test-helpers) from 2.2.5 to 2.2.6.
- [Release notes](https://github.com/emberjs/ember-test-helpers/releases)
- [Changelog](https://github.com/emberjs/ember-test-helpers/blob/master/CHANGELOG.md)
- [Commits](emberjs/ember-test-helpers@v2.2.5...v2.2.6)

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

package.json

@@ -37,7 +37,7 @@
   },
   "devDependencies": {
     "@ember/optional-features": "^2.0.0",
-    "@ember/test-helpers": "^2.2.5",
+    "@ember/test-helpers": "^2.2.6",
     "@glimmer/component": "^1.0.3",
     "@glimmer/tracking": "^1.0.3",
     "babel-eslint": "^10.1.0",

yarn.lock

@@ -1223,15 +1223,15 @@
     mkdirp "^1.0.4"
     silent-error "^1.1.1"
 
-"@ember/test-helpers@^2.2.5":
-  version "2.2.5"
-  resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-2.2.5.tgz#9f915310b79fd6330e8e19857958e5f241c1d0de"
-  integrity sha512-E0GMlkmRb9r3lHa+88gtfZcve+IlAS3yoUsB5QSSTC8oRTGhqzirvsxYAylCj8n40gfoOHdqKEZxncYhVimZwg==
+"@ember/test-helpers@^2.2.6":
+  version "2.2.6"
+  resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-2.2.6.tgz#48a5dd6f871dd531c81edfee8094991fd932dc12"
+  integrity sha512-nsrIeFeA2ZChLYp+qgOjpDKo0a294PVRJ3XZtid2alF4VjNTJPl+tyjQfnPje5kcQtADZlIGOqemNYC3HTo4Lg==
   dependencies:
     "@ember/test-waiters" "^2.4.3"
     broccoli-debug "^0.6.5"
     broccoli-funnel "^3.0.3"
-    ember-cli-babel "^7.26.2"
+    ember-cli-babel "^7.26.4"
     ember-cli-htmlbars "^5.7.1"
     ember-destroyable-polyfill "^2.0.3"
 
@@ -5272,10 +5272,10 @@ ember-cli-babel@^6.0.0-beta.4:
     ember-cli-version-checker "^2.1.2"
     semver "^5.5.0"
 
-ember-cli-babel@^7.0.0, ember-cli-babel@^7.13.0, ember-cli-babel@^7.13.2, ember-cli-babel@^7.22.1, ember-cli-babel@^7.23.0, ember-cli-babel@^7.23.1, ember-cli-babel@^7.26.2, ember-cli-babel@^7.7.3:
-  version "7.26.4"
-  resolved "https://registry.yarnpkg.com/ember-cli-babel/-/ember-cli-babel-7.26.4.tgz#b73d53592c05479814ca1770b3b849d4e01a87f0"
-  integrity sha512-GibwLrBUVj8DxNMnbE5PObEIeznX6ohOdYHoSMmTkCBuXa/I9amRGIjBhNlDbAJj+exVKKZoEGAdrV13gnyftQ==
+ember-cli-babel@^7.0.0, ember-cli-babel@^7.13.0, ember-cli-babel@^7.13.2, ember-cli-babel@^7.22.1, ember-cli-babel@^7.23.0, ember-cli-babel@^7.23.1, ember-cli-babel@^7.26.2, ember-cli-babel@^7.26.4, ember-cli-babel@^7.7.3:
+  version "7.26.6"
+  resolved "https://registry.yarnpkg.com/ember-cli-babel/-/ember-cli-babel-7.26.6.tgz#322fbbd3baad9dd99e3276ff05bc6faef5e54b39"
+  integrity sha512-040svtfj2RC35j/WMwdWJFusZaXmNoytLAMyBDGLMSlRvznudTxZjGlPV6UupmtTBApy58cEF8Fq4a+COWoEmQ==
   dependencies:
     "@babel/core" "^7.12.0"
     "@babel/helper-compilation-targets" "^7.12.0"