Bump emoji from 0.6.0 to 2.2.0

Bumps [emoji](https://github.com/carpedm20/emoji) from 0.6.0 to 2.2.0.
- [Release notes](https://github.com/carpedm20/emoji/releases)
- [Changelog](https://github.com/carpedm20/emoji/blob/master/CHANGES.md)
- [Commits](https://github.com/carpedm20/emoji/commits/v2.2.0)

---
updated-dependencies:
- dependency-name: emoji
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

requirements.txt

@@ -2,7 +2,7 @@ apispec==4.0.0
 bunch==1.0.1
 dicttoxml==1.7.4
 elasticsearch-dsl==7.4.1
-emoji==0.6.0
+emoji==2.2.0
 falcon==2.0.0
 falcon-apispec==0.3.0
 falcon-auth==1.1.0