Upgrade Kube-prometheus-stack to v40.3.1

[Pavan-Gunda]

What Chart should be upgraded?

upstream/Kube-prometheus-stack, also you may need to add new alerts (e.g. config-reloaders.yaml, kubernetes-system-controller-manager.yaml, kubernetes-system-scheduler.yaml)

Why should this Chart be upgraded?

• [ ] We need to perform a security upgrade.
• [ ] We need it for a new feature: which feature (link to blocked issue).
• [x] We need to keep up to prevent future issues.
• [ ] Other: Write the reason here

Acceptance criteria

• I checked the migration of the new Chart:
  • [ ] I upgraded a Chart and determined that no migration steps are needed.
  • [ ] I upgraded a Chart and added migration steps.
• [ ] I tested the functionality provided by the new Chart (e.g., Auth flow, Grafana dashboards, etc.)