update clusterctl version to v1.3.x in quickstart

Author: Yuvaraj Kakaraparthi

docs/book/src/user/quick-start.md

@@ -156,7 +156,7 @@ The clusterctl CLI tool handles the lifecycle of a Cluster API management cluste
 #### Install clusterctl binary with curl on Linux
 Download the latest release; on Linux, type:
 ```bash
-curl -L {{#releaselink gomodule:"sigs.k8s.io/cluster-api" asset:"clusterctl-linux-amd64" version:"1.2.x"}} -o clusterctl
+curl -L {{#releaselink gomodule:"sigs.k8s.io/cluster-api" asset:"clusterctl-linux-amd64" version:"1.3.x"}} -o clusterctl
 ```
 Install clusterctl:
 ```bash
@@ -173,12 +173,12 @@ clusterctl version
 #### Install clusterctl binary with curl on macOS
 Download the latest release; on macOS, type:
 ```bash
-curl -L {{#releaselink gomodule:"sigs.k8s.io/cluster-api" asset:"clusterctl-darwin-amd64" version:"1.2.x"}} -o clusterctl
+curl -L {{#releaselink gomodule:"sigs.k8s.io/cluster-api" asset:"clusterctl-darwin-amd64" version:"1.3.x"}} -o clusterctl
 ```
 
 Or if your Mac has an M1 CPU ("Apple Silicon"):
 ```bash
-curl -L {{#releaselink gomodule:"sigs.k8s.io/cluster-api" asset:"clusterctl-darwin-arm64" version:"1.2.x"}} -o clusterctl
+curl -L {{#releaselink gomodule:"sigs.k8s.io/cluster-api" asset:"clusterctl-darwin-arm64" version:"1.3.x"}} -o clusterctl
 ```
 
 Make the clusterctl binary executable.
@@ -217,7 +217,7 @@ Go to the working directory where you want clusterctl downloaded.
 
 Download the latest release; on Windows, type:
 ```powershell
-curl.exe -L {{#releaselink gomodule:"sigs.k8s.io/cluster-api" asset:"clusterctl-windows-amd64.exe" version:"1.2.x"}} -o clusterctl.exe
+curl.exe -L {{#releaselink gomodule:"sigs.k8s.io/cluster-api" asset:"clusterctl-windows-amd64.exe" version:"1.3.x"}} -o clusterctl.exe
 ```
 Append or prepend the path of that directory to the `PATH` environment variable.