Bump gunicorn from 25.0.1 to 25.0.3

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 25.0.1 to 25.0.3.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@25.0.1...25.0.3)

---
updated-dependencies:
- dependency-name: gunicorn
  dependency-version: 25.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

poetry.lock

@@ -19,7 +19,7 @@ flask-basicauth = "~=0.2"
 flask-login = "^0.6"
 flask-talisman = "*"
 flask-wtf = "^1.2"
-gunicorn = {version = "==25.0.1", extras = ["gevent"]}
+gunicorn = {version = "==25.0.3", extras = ["gevent"]}
 hypothesis = "^6.151.5"
 humanize = "~=4.15"
 itsdangerous = "~=2.2"