Brew symlink even if the target file doesn't exist

[aungzanbaw]

Versions and Operating System

• Kubernetes version:

  Output of kubectl version:

   Client Version: v1.30.2
   Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
   Server Version: v1.30.2
  

• Tekton Pipeline version:

  Output of tkn version or kubectl get pods -n tekton-pipelines -l app=tekton-pipelines-controller -o=jsonpath='{.items[0].metadata.labels.version}'

  Client version: 0.38.1
  Pipeline version: v0.63.0t
  

• Operating System:

  ProductName:		macOS
  ProductVersion:		14.6.1
  BuildVersion:	        23G93
  

Expected Behavior

Symbol linking from brew directory folder path changed, it's depends upon Mac silicon too.
ln symlink even if the target file doesn't exist.

Actual Behavior

/usr/local/bin/tkn would trigger but no such file or directory on Mac. ref

Steps to Reproduce the Problem

1. Install tekton via brew brew install tektoncd-cli
2. ln -s /usr/local/bin/tkn /usr/local/bin/kubectl-tkn

Additional Info