Minio image repository configuration missing #274

Problem Description

The minio image configuration in charts/milvus/values.yaml is missing the repository field. Currently, the configuration only has:

minio:
  image:
    tag: "RELEASE.2024-12-18T13-15-44Z"
    pullPolicy: IfNotPresent

When using private image registries, users are forced to manually add repository: minio/minio, and this change also ensures consistency with other configurations.

Expected Behavior

The minio image configuration should include an explicit repository field, similar to other components in the chart:

minio:
  image:
    repository: minio/minio
    tag: "RELEASE.2024-12-18T13-15-44Z"
    pullPolicy: IfNotPresent