docs: Add released version to helm and clusterctl install (#683)

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

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docs/content/getting-started/deployment/via-clusterctl.md

@@ -12,7 +12,7 @@ key from this block below:
 ```yaml
 providers:
   - name: "caren"
-    url: "https://github.com/nutanix-cloud-native/cluster-api-runtime-extensions-nutanix/releases/latest/runtime-extension-components.yaml"
+    url: "https://github.com/nutanix-cloud-native/cluster-api-runtime-extensions-nutanix/releases/v{{< param "version" >}}/runtime-extension-components.yaml"
     type: "RuntimeExtensionProvider"
 ```
 
@@ -28,7 +28,7 @@ env CLUSTER_TOPOLOGY=true \
     clusterctl init \
       --infrastructure docker,nutanix:v1.4.0-alpha.2,aws \
       --addon helm \
-      --runtime-extension caren \
+      --runtime-extension caren:v{{< param "version" >}} \
       --wait-providers
 ```
 

docs/content/getting-started/deployment/via-helm.md

@@ -26,6 +26,7 @@ Add the CAREN Helm repo:
 helm repo add caren https://nutanix-cloud-native.github.io/cluster-api-runtime-extensions-nutanix/helm
 helm repo update caren
 helm upgrade --install caren caren/cluster-api-runtime-extensions-nutanix \
+  --version v{{< param "version" >}} \
   --namespace caren-system \
   --create-namespace \
   --wait \