CI/CD: Extended test suite

[caffeine-addictt]

What type of PR is this? (check all applicable)

• Refactor
• Feature
• Bug Fix
• Optimization
• Breaking Change
• Documentation Update

Description

• Run test suite on ubuntu, windows and macOS in parallel

Added/updated tests?

We encourage you to keep the code coverage percentage at 80% and above.

• Yes
• No, and this is why: please replace this line with details on why tests
  have not been included
• I need help with writing tests

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.