Update dependency ember-concurrency to v4.0.4 (#11148)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -94,7 +94,7 @@
     "ember-cli-inject-live-reload": "2.1.0",
     "ember-cli-notifications": "9.1.0",
     "ember-click-outside": "6.1.1",
-    "ember-concurrency": "4.0.3",
+    "ember-concurrency": "4.0.4",
     "ember-css-modules": "2.1.1",
     "ember-data": "5.4.1",
     "ember-disable-prototype-extensions": "1.1.3",