Update charts/hub-agent/values.yaml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: weng271190436

charts/hub-agent/values.yaml

@@ -18,7 +18,7 @@ enableGuardRail: true
 webhookClientConnectionType: service
 enableWorkload: false
 # useCertManager enables cert-manager for webhook certificate management
-# When enabled, cert-manager will be installed as a dependency
+# When enabled, cert-manager must be installed as a prerequisite (it is not installed automatically by this chart)
 # and a Certificate resource will be created
 useCertManager: false
 # webhookCertDir is the directory where webhook certificates are mounted