Update cyberchef application version to 11.4.0

Major jump 10.22.1 -> 11.4.0: the upstream image switched to
nginxinc/nginx-unprivileged (serving port 80 -> 8080, pid/temp dirs
under /tmp). Adjust container port, writable-volume mounts and the
pod security context (sysctl net.ipv4.ip_unprivileged_port_start no
longer needed). Chart major bump 4.1.0 -> 5.0.0 accordingly.

cyberchef/Chart.yaml

@@ -4,8 +4,8 @@ description: A Helm chart to deploy Cyberchef on Kubernetes
 
 type: application
 
-version: 4.1.0+up10.22.1
-appVersion: "10.22.1"
+version: 5.0.0+up11.4.0
+appVersion: "11.4.0"
 
 maintainers:
   - name: jklein