Bump 'driver' and 'syncer' image from v2.5.0 to v2.5.1

[thectrltab]

It may be interesting to upload the version of these images:

• gcr.io/cloud-provider-vsphere/csi/release/driver:v2.5.1
• gcr.io/cloud-provider-vsphere/csi/release/syncer:v2.5.1

Related to:

• Issues:
  • https://github.com/kubernetes-sigs/vsphere-csi-driver/issues/1629
• Pulls:
  • https://github.com/kubernetes-sigs/vsphere-csi-driver/pull/1637
  • https://github.com/kubernetes-sigs/vsphere-csi-driver/pull/1662
• Release: https://github.com/kubernetes-sigs/vsphere-csi-driver/releases/tag/v2.5.1

[MaxRink]

Thats done now, with chart version 2.1.1