build(deps-dev): bump ember-concurrency from 2.3.2 to 2.3.4 (#2139)
build(deps-dev): bump ember-concurrency from 2.3.2 to 2.3.4 (#2139)

Bumps [ember-concurrency](https://github.com/machty/ember-concurrency) from 2.3.2 to 2.3.4.
- [Release notes](https://github.com/machty/ember-concurrency/releases)
- [Changelog](https://github.com/machty/ember-concurrency/blob/master/CHANGELOG.md)
- [Commits](https://github.com/machty/ember-concurrency/compare/2.3.2...2.3.4)

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
emberjs/ember-inspector,emberjs/ember-inspector