[btr1975]

Description

• Removed python 3.9, added python 3.14
• Added 2 new cli commands "validate-compose", and "validate-values".
• Pod-Porter now validates generated compose files against the "official" compose json spec.

Type of change

• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Possible Breaking change (fix or feature that could cause existing functionality to not work as expected)

Checklist:

• My code follows the style guidelines
• I have updated the pyproject.toml
• I have updated the requirements.txt
• I have updated the requirements-dev.txt
• I have linted my code
• I have written unit-tests for python code
• I have verified code coverage
• I have updated the documents