fix: update comments in values.yaml for existing secret usage

[atobaum]

Fix comments in the chart values to reflect actural implementation

The comments said postgresql.auth.username and other username values are not used and picked them up from the secrets when existingSecret is set. But the chart uses postgresql.auth.username values regardless the existingSecret value.

langfuse-k8s/charts/langfuse/templates/_helpers.tpl

Lines 194 to 197 in b186600

	{{- if .Values.postgresql.auth.username }}
	- name: DATABASE_USERNAME
	value: {{ .Values.postgresql.auth.username | quote }}
	{{- end }}

---

Important

Corrects comments in values.yaml to clarify that only passwords, not usernames, are ignored when existingSecret is set for postgresql, clickhouse, and s3.

• Comments Update:
  • Corrects comments in values.yaml for postgresql.auth, clickhouse.auth, and s3.auth sections.
  • Clarifies that only password is ignored when existingSecret is set, not username.

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[CLAassistant]

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[Steffen911]

@atobaum Could you update the README file in charts/langfuse as well? This should happen automatically by running docker run --rm --volume "$(pwd):/helm-docs" -u $(id -u) jnorwood/helm-docs:latest.

[atobaum]

@Steffen911 Updated README.md. PTAL. Thanks for the command!