Python dependency: Update gssapi requirement in /web/regression

Updates the requirements on [gssapi](https://github.com/pythongssapi/python-gssapi) to permit the latest version.
- [Release notes](https://github.com/pythongssapi/python-gssapi/releases)
- [Commits](pythongssapi/python-gssapi@v1.8.0...v1.9.0)

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

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

requirements.txt

@@ -34,7 +34,7 @@ bcrypt==4.2.*
 cryptography==43.0.*
 sshtunnel==0.*
 ldap3==2.*
-gssapi==1.8.*
+gssapi==1.9.*
 eventlet==0.37.0
 user-agents==2.2.0
 pywinpty==2.0.*; sys_platform=="win32"