chore(deps-dev): bump ember-concurrency from 2.0.3 to 2.1.2 (#747)

Bumps [ember-concurrency](https://github.com/machty/ember-concurrency) from 2.0.3 to 2.1.2.
- [Release notes](https://github.com/machty/ember-concurrency/releases)
- [Changelog](https://github.com/machty/ember-concurrency/blob/master/CHANGELOG.md)
- [Commits](machty/ember-concurrency@2.0.3...2.1.2)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -70,7 +70,7 @@
     "ember-cli-terser": "4.0.2",
     "ember-code-snippet": "3.0.0",
     "ember-composable-helpers": "4.4.1",
-    "ember-concurrency": "2.0.3",
+    "ember-concurrency": "2.1.2",
     "ember-disable-prototype-extensions": "1.1.3",
     "ember-export-application-global": "2.0.1",
     "ember-load-initializers": "2.1.2",

yarn.lock

@@ -6437,10 +6437,10 @@ ember-composable-helpers@4.4.1:
     ember-cli-babel "^7.11.1"
     resolve "^1.10.0"
 
-ember-concurrency@2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/ember-concurrency/-/ember-concurrency-2.0.3.tgz#d8ac917fdf013a277bfc7b26e417937ee0638455"
-  integrity sha512-+fOOFt32odnunDL3Du0LqMgnRzDDNKnzo1ry9ppICpvLXekJzYFwU1RniVivfJ+9nbpHMJZQUlZJAm1ZAnTExw==
+ember-concurrency@2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ember-concurrency/-/ember-concurrency-2.1.2.tgz#a27178fb24951933fa72dd7cf1dca852693cc5c1"
+  integrity sha512-xC6L/SKuM08e9TK5igkSEwbAtkX2sqrj9Xap9G3zYSYdAIO7fcS6ZNEaD5e+dVXwPqH3tOIq41ZT7fqQ7mQ0KQ==
   dependencies:
     "@glimmer/tracking" "^1.0.2"
     ember-cli-babel "^7.22.1"