Cut track branches on all repos for CKF 1.8

[kimwnasptd]

What needs to get done

We'll need to make sure we have created the corresponding tracks for all components used currently in our bundle
https://github.com/canonical/bundle-kubeflow/blob/main/releases/latest/edge/bundle.yaml

This will need to happen after we've first merged

• bump image to match kf 1.8 kserve-operators#191
• Update image and manifests for v1.8 katib-operators#151
• Update image and manifests for v1.8 kubeflow-tensorboards-operator#98
• Update image and manifests for v1.8 kubeflow-volumes-operator#119
• fix(cherry-pick): set charm to waitingStatus if missing ingress auth data (#342) istio-operators#348
• Revert "fix: explicitly apply minio-service with name (#151)" minio-operator#154
• Merge KFP PRs
  • kfp-operators upgrades from 2.0.0-alpha.7 -> 2.0.3 for CKF 1.8 release kfp-operators#362
  • refactor kfp-api's on_remove to use KRH built-in delete kfp-operators#385
  • fix: reduce flakiness of kfp-api integration tests kfp-operators#386
  • add service minio-service to kfp api to patch upstream kfp bug kfp-operators#387
• Publish envoy-operator charm to metadata-envoy instead of envoy envoy-operator#66

Why it needs to get done

In order for us to update the bundle for the 1.8 release, and have automations just for 1.8

[orfeas-k]

Closing since all branches were cut