Bump gunicorn from 20.1.0 to 22.0.0

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 20.1.0 to 22.0.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@20.1.0...22.0.0)

---
updated-dependencies:
- dependency-name: gunicorn
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

poetry.lock

@@ -35,7 +35,7 @@ webp = "~0.3"
 
 # Production
 bugsnag = "^4.6"
-gunicorn = "^20.1"
+gunicorn = "^22.0"
 uvicorn = "~0.23.2"
 locust = { version = "^2.12", optional = true }