pega-tomcat-keystore-secret.yaml still generated if external secret is provided

[rob8714]

Describe the bug
The pega-tomcat-keystore-secret.yaml is producing output even if an external secret is provided.

To Reproduce
Set the following for the tiers in the values file and generate the helm chart:

service:
  tls:
    enabled: true
    external_secret_names: ["test"]

Expected behavior
When external_secret_names is not empty, the pega-tomcat-keystore-secret.yaml content should not be generated.

Chart version
v3.24.3

Additional context
Potentially this was broken with 7d03c0f. With this commit there was a change in name from external_secret_name to external_secret_names. In pega-tomcat-keystore-secret.yaml the condition is:

{{ if not (($dep.service).tls).external_secret_name }}