Bump ember-window-mock from 0.5.4 to 0.6.0

Bumps [ember-window-mock](https://github.com/kaliber5/ember-window-mock) from 0.5.4 to 0.6.0.
- [Release notes](https://github.com/kaliber5/ember-window-mock/releases)
- [Commits](simonihmig/ember-window-mock@v0.5.4...v0.6.0)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -77,7 +77,7 @@
     "ember-svg-jar": "^2.2.3",
     "ember-test-selectors": "^3.0.0",
     "ember-web-app": "^3.0.1",
-    "ember-window-mock": "^0.5.4",
+    "ember-window-mock": "^0.6.0",
     "eslint": "^6.8.0",
     "eslint-config-prettier": "^6.10.0",
     "eslint-plugin-ember": "^7.7.2",