Update nginx helm chart to v4.11.1 to pick up latest CVE fixes
Test Cases:
PASS: Install system,bootstrap with new images and verify it is
successful with latest k8s v1.29.2
PASS: Deploy kaurd app by exposing service using nginx ingress
controller with cert issued by stepca using ACME protocol
PASS: Test snmp app with nginx overrides, try snmpbulkget with
success with no error on nginx pods
PASS: Run ansible bootstrap playbook with new image on k8s v1.24.4
and verify that both apps are applied successfully and all
nginx,cert-manager pods are running without issues
PASS: Perform platform upgrade and notice that nginx app is
successfully updated during the upgrade
Story: 2011087
Task: 51143
Depends-on: https://review.opendev.org/c/starlingx/ansible-playbooks/+/931789
Change-Id: I4c2385ea6f2f69f8a98063510fbf56d75b18a7fb
Signed-off-by: amantri <ayyappa.mantri@windriver.com>