Bump gunicorn from 21.2.0 to 22.0.0 in /src/satosa (#4)

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 21.2.0 to 22.0.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](https://github.com/benoitc/gunicorn/compare/21.2.0...22.0.0)

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

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src/satosa/pyproject.toml

@@ -24,7 +24,7 @@ readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
     "SATOSA==8.4.0",
-    "gunicorn==21.2.0",
+    "gunicorn==22.0.0",
 ]
 
 [project.urls]