fix: update chocolatey installer

[chandrareddyp]

What this PR does / why we need it

When installing the latest CLI version v1.2.0-rc.0 using Chocolatey, there is an issue with the spinner when installing plugins. If Ctrl+C is pressed while the spinner is running, it does not properly handle the interrupt and terminate the spinner. Instead, the CLI hangs without returning an error.

The root cause is the Windows Chocolatey install wrapper or shim that gets created for the tanzu executable. This wrapper kills the CLI process on Ctrl+C without allowing the CLI to catch the interrupt itself. There is a long-standing open issue on this behavior: chocolatey/home#134

This PR fixes the issue by avoiding the Chocolatey-generated wrapper or shim for the tanzu executable. Instead, it directly uses the tanzu CLI release executable tanzu-cli-windows-*.exe or tanzu command, and updates the install script to ignore creating a wrapper.

Which issue(s) this PR fixes

Fixes #

Describe testing done for PR

1. The choco pack built in Mac:

cpamuluri@cpamuluriGMD6R tanzu-cli % make choco-package BUILD_VERSION=v1.2.0-rc.0  
docker run --rm \
                -e VERSION=v1.2.0-rc.0 \
                -e SHA_FOR_CHOCO_AMD64= \
                -e SHA_FOR_CHOCO_ARM64= \
                -v /Users/cpamuluri/tkg/tasks/cli_core_main/tanzu-cli:/Users/cpamuluri/tkg/tasks/cli_core_main/tanzu-cli \
                chocolatey/choco:v1.4.0 /Users/cpamuluri/tkg/tasks/cli_core_main/tanzu-cli/hack/choco/build_package.sh
Using SHA_AMD64: d4a715501a10382e903dbb38d18200ca483cf2c32b6bc66c83b49a5e18501e8a
Using SHA_ARM64: ebc49a47dc162d6c1ed1c91db183f8958def7638822e38f4296efdd84ae84b0a
Chocolatey v1.4.0
Attempting to build package from 'tanzu-cli-unstable.nuspec'.
Successfully created package '/Users/cpamuluri/tkg/tasks/cli_core_main/tanzu-cli/hack/choco/_output/choco/tanzu-cli-unstable.1.2.0-rc0.nupkg'

Are you ready for the ultimate experience? Check out Pro / Business!
 https://chocolatey.org/compare

2)Installation after the fix:
After the above build, the files from the tanzu-cli/hack/choco/_output/choco/ (chocolateyInstall.ps1 and tanzu-cli-unstable.1.2.0-rc0.nupkg) copied to windows AMD system, then installed the choco package:
choco install -s=/Users/chan/Downloads tanzu-cli-unstabl --pre --force

3)The spinner issue is tested in Power shell and Command prompt, its working fine:

Release note

The plugin installation spinner termination issue on Windows has been fixed.

Additional information

Special notes for your reviewer

[marckhouzam]

Can you just update the PR description please?

LGTM!
I tested it on both Windows AMD64 and Windows ARM64.