* helm: add Iceberg REST catalog support to S3 service
* helm: add Iceberg REST catalog support to S3 service
* add ingress for iceberg catalog endpoint
* helm: conditionally render ingressClassName in s3-iceberg-ingress.yaml
* helm: refactor s3-iceberg-ingress.yaml to use named template for paths
* helm: remove unused $serviceName variable in s3-iceberg-ingress.yaml
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Co-authored-by: yalin.sahin <yalin.sahin@tradition.ch>
Co-authored-by: Chris Lu <chris.lu@gmail.com>