ingress-nginx-app release v1.6.9

Changed

• Restrict PodSecurityPolicy volumes to only those required (removes wildcard).
• Tune net.ipv4.ip_local_port_range to 1024 65535 as a safe sysctl.
• Tune net.core.somaxconn to 32768 via an initContainer with privilege escalation.
• Use 4 worker processes by default.
• Use upstream default of max-worker-connections of 16384.
• Ignore NGINX IC Deployment replica count configuration when HorizontalPodAutoscaler is enabled.
• Drop unnecessary Helm release revision annotation from NGINX IC Deployment.
• Adjust README for display in the web interface context.