[Epic] Upgrade upstream apps to new versions

[Pavan-Gunda]

What Chart should be upgraded?

• [x] upstream / certmanager #1015
• [ ] upstream / certmanager #1221
• [ ] upstream / falco #1017
• [x] upstream / falco-exporter #1016
• [x] upstream / opensearch #1022
• [x] upstream / opensearch-dashboards #1021
• [ ] upstream / fluentd #1222
• [ ] upstream / fluentd-elasticsearch #1223
• [ ] upstream / gatekeeper #1224
• [ ] upstream / ingress-nginx #1225
• [ ] upstream / kured #1226
• [ ] upstream / metrics-server #1227
• [ ] upstream / starbord-operator #1228
• [ ] upstream / prometheus-elasticsearch-exporter #1229
• [ ] upstream / prometheus-blackbox-exporter #1230
• [x] upstream / dex #1231
• [ ] upstream / thanos #1023
• [ ] upstream / kube-prometheus-stack #1020
• [ ] upstream / grafana #1018
• [x] upstream / harbor #1019
• [x] https://github.com/elastisys/compliantkubernetes-apps/issues/1056

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.)