feat(helm): add vault secret generation

[sb-embeteco]

WHAT

• Adds vault initialization script job to generate and push AES or RSA keys into the vault on install
• Removes static demonstration keypairs from templates
• Fixes missing assignment of iatp default scope environment variables
• Changes PostgreSQL Dependency from legacy Bitnami to CloudPirates (also see Tractus-X migration Guide)
• Changes default connector, wallet and issuer name values to better align with Construct-X Wallet values
• Removes duplicate assignments of certain environment variables

WHY

• The current EDC Helm deployment uses static RSA keypairs stored in a ConfigMap and pushes them into the vault, which is only recommended in demonstration scenarios.

FURTHER NOTES

What has been tested

• helm lint --strict passes without errors
• helm template renders without errors
• Deployed to cluster using Construct-X Wallet and Issuer
  • Note: with Istio as Ingresscontroller instead of nginx Ingresscontroller
• Vault-init job completed successfully
• Controlplane and Dataplane pods reached Running state with no error messages
• Endpoints reachable
• Paricipant creation successful via super-user extension
• Transcation flow between namespace-separated consumer- and provider-edc was tested and passed using Construct-X Bruno Collection

Linked Issue(s)

Contributes to CXAP6-123