✨ Add cliVersion field to PROJECT file

[vitorfloriano]

This PR adds a new field to the PROJECT file: cliVersion.

Additionally, it updates the documentation in the Project Configuration Reference to include the new cliVersion field.

It also updates the PROJECT file scaffolded in the docs and in testdata.

Closes: #4398

Test Steps:

1. Build a snapshot release using GoReleaser:

~/kubebuilder$ goreleaser release --snapshot --skip=publish -f ./build/.goreleaser.yml

2. Create a new test project directory:

mkdir -p ~/projects/test-project-file && cd ~/projects/test-project-file

3. Initialize the test project using the Kubebuilder snapshot:

~/kubebuilder/dist/kubebuilder_linux_amd64_v1/kubebuilder init --domain example.com --repo github.com/test/example-operator

4. Verify the generated PROJECT file:

$ cat PROJECT 
# Code generated by tool. DO NOT EDIT.
# This file is used to track the info used to scaffold your project
# and allow the plugins properly work.
# More info: https://book.kubebuilder.io/reference/project-config.html
cliVersion: 4.5.1-SNAPSHOT-6ab4d371b
domain: example.com
layout:
- go.kubebuilder.io/v4
projectName: test-project-file
repo: github.com/test/example-operator
version: "3"

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: vitorfloriano
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[k8s-ci-robot]

Hi @vitorfloriano. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[camilamacedo86]

Terrific 🎉 . Thank you a lot for your contribution 🥇

[k8s-ci-robot]

PR needs rebase.

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