How to deploy a jar as maven repository

[TheMeinerLP]

Overview

This pr point's to create blog post how developers can create Maven Repos for Plugins they don't have it.

Description

### Submitter Checklist
- [X] Make sure you are opening from a topic branch (**/feature/fix/docs/ branch** (right side)) and not your main branch.
- [X] Ensure that the pull request title represents the desired changelog entry.
- [X] New public fields and methods are annotated with `@since TODO`.
- [X] I read and followed the [contribution guidelines](https://github.com/OneLiteFeatherNET/.github/blob/main/CONTRIBUTING.md).