only print the created secret if one was created

[itewk]

isssue

the notes file always printed that a secret was created, but the secret is only created if the global.pgpKeys value is set.

see:

• ploigos-charts/charts/ploigos-workflow/shared-resources/templates/Secret_pgp-keys.yml

  Line 1 in 44823e5

  {{- if $.Values.global.pgpKeys }}

• ploigos-charts/charts/ploigos-workflow/shared-resources/templates/NOTES.txt

  Line 21 in 44823e5

  * PGP Keys Secret: {{ include "ploigos-workflow.pgpKeysSecretName" . }}