How to upgrade Minikube on Windows?

@cecelia 

To upgrade Minikube on Windows, you can follow the steps below:

1. Open Command Prompt or PowerShell as an administrator.
2. Check the current version of Minikube by running the command minikube version. Note down the version number.
3. Remove the existing Minikube installation by running the command minikube delete.
4. Go to the Minikube releases page on GitHub (https://github.com/kubernetes/minikube/releases) and find the latest stable version.
5. Download the Minikube binary for Windows by clicking on the link ending with "-windows-amd64.exe". Save it to a convenient location on your machine.
6. Rename the downloaded binary file to minikube.exe.
7. Copy the minikube.exe file to a directory that is included in your system's PATH environment variable. This allows you to run the Minikube command from any location in the Command Prompt or PowerShell.
8. Open a new Command Prompt or PowerShell window and run the command minikube version to verify that the new version is installed correctly.

You have now successfully upgraded Minikube on Windows.