Bump gunicorn from 25.3.0 to 26.0.0

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 25.3.0 to 26.0.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@25.3.0...26.0.0)

---
updated-dependencies:
- dependency-name: gunicorn
  dependency-version: 26.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements.txt

@@ -7,7 +7,7 @@ Flask-SSLify==0.1.5
 Flask-Testing==0.8.1
 Flask-SeaSurf==2.0.0
 flask-talisman==1.1.0
-gunicorn==25.3.0
+gunicorn==26.0.0
 pycodestyle==2.14.0
 pydocstyle==6.3.0
 requests==2.33.1