fix: Do not use digests for Cilium images

This would break for air-gapped installations as the repo digest
changes when we build the air-gapped bundle,

Author: jimmidyson

charts/cluster-api-runtime-extensions-nutanix/addons/cni/cilium/values-template.yaml

@@ -2,12 +2,17 @@ cni:
   chainingMode: portmap
   exclusive: false
 hubble:
+  enabled: true
   tls:
     auto:
       enabled: true               # enable automatic TLS certificate generation
       method: cronJob             # auto generate certificates using cronJob method
       certValidityDuration: 60    # certificates validity duration in days (default 2 months)
       schedule: "0 0 1 * *"       # schedule on the 1st day regeneration of each month
+  relay:
+    enabled: true
+    image:
+      useDigest: false
 ipam:
   mode: kubernetes
 image:
@@ -20,3 +25,6 @@ certgen:
     useDigest: false
 socketLB:
   hostNamespaceOnly: true
+envoy:
+  image:
+    useDigest: false