[DOCS]: Update docs and `versions.md` to use v4 and GitVersion.Tool v6.1.x

### Prerequisites

- [x] I have written a descriptive issue title
- [x] I have searched [issues](https://github.com/GitTools/actions/issues) to ensure it has not already been reported

### GitVersion package

GitHub Actions, AzureDevops task

### What are you seeing?

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### What is expected?

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### Steps to Reproduce

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### Output log or link to your CI build (if appropriate).

```shell

```