Bump ember-concurrency from 4.0.1 to 4.0.2

Bumps [ember-concurrency](https://github.com/machty/ember-concurrency) from 4.0.1 to 4.0.2.
- [Release notes](https://github.com/machty/ember-concurrency/releases)
- [Changelog](https://github.com/machty/ember-concurrency/blob/master/CHANGELOG.md)
- [Commits](machty/ember-concurrency@4.0.1...4.0.2)

---
updated-dependencies:
- dependency-name: ember-concurrency
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

ember-power-datepicker/package.json

@@ -99,7 +99,7 @@
     "babel-plugin-ember-template-compilation": "^2.2.1",
     "concurrently": "^8.2.2",
     "ember-basic-dropdown": "^8.0.4",
-    "ember-concurrency": "^4.0.1",
+    "ember-concurrency": "^4.0.2",
     "ember-power-calendar": "^1.0.1",
     "ember-source": "~5.7.0",
     "ember-template-lint": "^5.13.0",

test-app/package.json

@@ -85,7 +85,7 @@
     "ember-cli-sass": "^11.0.1",
     "ember-cli-sri": "^2.1.1",
     "ember-cli-terser": "^4.0.2",
-    "ember-concurrency": "^4.0.1",
+    "ember-concurrency": "^4.0.2",
     "ember-fetch": "^8.1.2",
     "ember-load-initializers": "^2.1.2",
     "ember-modifier": "^4.1.0",