test(e2e): Use released rocky image (#935)

**What problem does this PR solve?**:

**Which issue(s) this PR fixes**:
Fixes #

**How Has This Been Tested?**:
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Author: jimmidyson

.github/workflows/e2e.yml

@@ -83,7 +83,6 @@ jobs:
           NUTANIX_PRISM_ELEMENT_CLUSTER_NAME: ${{ vars.NUTANIX_PRISM_ELEMENT_CLUSTER_NAME }}
           NUTANIX_SUBNET_NAME: ${{ vars.NUTANIX_SUBNET_NAME }}
           NUTANIX_STORAGE_CONTAINER_NAME: ${{ vars.NUTANIX_STORAGE_CONTAINER_NAME }}
-          NUTANIX_MACHINE_TEMPLATE_IMAGE_NAME: nkp-rocky-9.4-release-1.29.6-20240716233458
 
       - if: success() || failure() # always run even if the previous step fails
         name: Publish e2e test report

test/e2e/config/caren.yaml

@@ -200,7 +200,7 @@ variables:
   # # Name of the Prism Element cluster.
   # NUTANIX_PRISM_ELEMENT_CLUSTER_NAME: ""
   # # Name of the OS image pre-uploaded in PC.
-  NUTANIX_MACHINE_TEMPLATE_IMAGE_NAME: nkp-rocky-9.4-1.29.6-20240704044125
+  NUTANIX_MACHINE_TEMPLATE_IMAGE_NAME: nkp-rocky-9.4-release-1.29.6-20240816215147
   # # Name of the subnet to be assigned to the VMs.
   # NUTANIX_SUBNET_NAME: ""
   # # Name of the storage container to CSI driver