fix: update CNCF registry version to 2.3.4, app version 2.8.3 (#1150)

**What problem does this PR solve?**:
This version picks up CVE fixes in the registry image.
(Updating to 3.0 will be handled as a separate PR.)

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

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

charts/cluster-api-runtime-extensions-nutanix/templates/helm-config.yaml

@@ -25,7 +25,7 @@ data:
     RepositoryURL: '{{ if .Values.helmRepository.enabled }}oci://helm-repository.{{ .Release.Namespace }}.svc/charts{{ else }}https://kubernetes.github.io/autoscaler{{ end }}'
   cncf-distribution-registry: |
     ChartName: docker-registry
-    ChartVersion: 2.3.2
+    ChartVersion: 2.3.4
     RepositoryURL: '{{ if .Values.helmRepository.enabled }}oci://helm-repository.{{ .Release.Namespace }}.svc/charts{{ else }}https://mesosphere.github.io/charts/staging/{{ end }}'
   cosi-controller: |
     ChartName: cosi

hack/addons/helm-chart-bundler/repos.yaml

@@ -35,7 +35,7 @@ repositories:
     repoURL: https://mesosphere.github.io/charts/staging/
     charts:
       docker-registry:
-      - 2.3.2
+      - 2.3.4
   local-path-provisioner:
     repoURL: https://charts.containeroo.ch
     charts:

hack/addons/kustomize/cncf-distribution-registry/kustomization.yaml.tmpl

@@ -18,7 +18,7 @@ helmCharts:
 - name: docker-registry
   repo: https://mesosphere.github.io/charts/staging/
   releaseName: cncf-distribution-registry
-  version: 2.3.2
+  version: 2.3.4
   valuesFile: helm-values.yaml
   includeCRDs: true
   skipTests: true