ESO-417: Extends ExternalSecretsConfig with trustedCABundle for custom PKI

[bharath-b-rh]

Summary

The enhancement proposal already described operand customization via ExternalSecretsConfig (for example global annotations, componentConfig / revisionHistoryLimit, and overrideEnv). This update extends that same proposal with spec.controllerConfig.trustedCABundle: optional ConfigMap-backed CA certificates for the external-secrets core controller TLS trust (alongside existing proxy/CNO behaviour), including validation, mount/SSL_CERT_DIR semantics, CEL interaction with overrideEnv, topology, tests, and support notes.

[openshift-ci-robot]

@bharath-b-rh: This pull request references ESO-417 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "5.0.0" version, but no target version was set.

Details

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Summary

The enhancement proposal already described operand customization via ExternalSecretsConfig (for example global annotations, componentConfig / revisionHistoryLimit, and overrideEnv). This update extends that same proposal with spec.controllerConfig.trustedCABundle: optional ConfigMap-backed CA certificates for the external-secrets core controller TLS trust (alongside existing proxy/CNO behaviour), including validation, mount/SSL_CERT_DIR semantics, CEL interaction with overrideEnv, topology, tests, and support notes.

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[openshift-ci]

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[openshift-ci]

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