[FEATURE] Loosen pluggy version

[mikita-sakalouski]

Description

Pluggy dependencies as follows pluggy = "^1"

Related Issue

#93

Motivation and Context

Currently pluggy version is hardcoded to pluggy = "1.0.0" which is not allowing to use latest versions of pytest.

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.