feat(helm): add licenseProxy values for corporate HTTP proxy support

[cadolbeau-absyss]

Summary

• Add a licenseProxy section to values.yaml (host, port, user, password) that automatically generates a ConfigMap containing license.config and mounts it into vtom-server, vtom-apiserver, itc, and itm
• Allows the Absyss Java license client to reach license-ctrl.customer.absyss.com through a corporate HTTP proxy without any manual Kubernetes object creation
• When licenseProxy.host is empty (default), no ConfigMap is created and no volume mount is added — existing deployments are unaffected
• Fixes the missing license.config mount on vtom-server (deployment-server.yaml), which had no proxy support even when configured manually
• Updates values-client-template.yaml with the new commented section so operators are aware of the option

Usage

licenseProxy:
  host: "proxy.corp.example.com"
  port: 3128
  user: ""        # leave empty if the proxy requires no authentication
  password: ""    # leave empty if the proxy requires no authentication

Test plan

• helm template with licenseProxy.host set renders the ConfigMap and volume mounts in all 4 deployments
• helm template with licenseProxy.host empty renders no ConfigMap and no volume mounts
• Pods start and license registration succeeds in a proxied on-premise environment

[Cadolbeau]

ok