tests: Adds common setup steps

[claudiubelu]

Description

There are 2 types of tests being run: single node, and multi node. Adds GitHub actions for these 2 types of scenarios, with the common steps for those scenarios.

This should make future tests easier to write and review.

Type of change

• Clean code (code refactor, test updates; does not introduce functional changes)

How has this been tested?

[!NOTE] All functional changes should accompany corresponding tests (unit tests, functional tests, etc.).

Please describe the addition/modification of tests done to verify this change. Also list any relevant details for your test configuration.

Contributor checklist

Please check that you have:

• [x] self-reviewed the code in this PR
• [ ] added code comments, particularly in less straightforward areas
• [ ] checked and added or updated relevant documentation
• [ ] checked and added or updated relevant release notes
• [ ] added tests to verify effectiveness of this change

[UtkarshBhatthere]

A welcome change :D. I am happy with the overall idea of the PR, will do a thorough review as i do have some nits. Thanks @claudiubelu