Update pccommon to have unbound version constraints

[ghidalgo3]

Description

We need to update the dependency constraints of pccommon to be more relaxed, specifically the pydantic version. I also upgrade the project from setup.py to pyproject.toml.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Build-only change, PR pipeline will test installability of dependent projects.

Checklist:

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• I have performed a self-review
• Changelog has been updated
• Documentation has been updated
• Unit tests pass locally (./scripts/test)
• Code is linted and styled (./scripts/format)