fix: resolve duplicate volume claims in PVC handling logic

[almog8k]

Question	Answer
Bug fix	✔

Further information:

Support single NFS for both ingestion and internal storage

Some environments use separate NFS servers for ingestion sources and internal storage, while others use a single shared NFS. This change allows both configurations without modifying the template.

How it works

• When PVC names differ → two separate volumes are created
• When PVC names match → one volume is created and reused for both mounts

Usage

Shared NFS:

ingestionSourcePvc:
  name: "shared-pvc"
internalPvc:
  name: "shared-pvc"

Separate NFS:

ingestionSourcePvc:
  name: "ingestion-pvc"
internalPvc:
  name: "internal-pvc"