Docs for notifications are incorrect that show Argo Rollouts templates using Argo CD Application data

[toddradin]

Checklist:

• I've included steps to reproduce the bug.
• I've included the version of argo rollouts.

Describe the bug

Many of the docs of the Argo Rollout notification services make it seem that you can subscribe Argo CD Application to Argo Rollout triggers or access Argo CD Application data (e.g. .app.metadata.name) in Argo Rollout templates. This is incorrect per #3990 as Argo Rollouts notifications only has context to Rollout resources.

To Reproduce

Expected behavior

Screenshots

Version

Logs

# Paste the logs from the rollout controller

# Logs for the entire controller:
kubectl logs -n argo-rollouts deployment/argo-rollouts

# Logs for a specific rollout:
kubectl logs -n argo-rollouts deployment/argo-rollouts | grep rollout=<ROLLOUTNAME

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[kostis-codefresh]

Possibly duplicate of #1680