Add a command to get environment variables

[andreia-oca]

Pull Request Template

Type of change

• 🍕 New feature
• 🐛 Bug Fix
• 🔥 Breaking change
• 🧑‍💻 Improvement
• 📝 Documentation Update

Description

This PR introduces genezio getenv - a useful command to reveal env vars values.

This command doesn't require a genezio.yaml to work. It can be used as following:

genezio getenv --projectName <name>
genezio getenv --projectName <name> --format env > .env
genezio getenv --projectName <name> --format json | jq
GENEZIO_TOKEN=<token> genezio getenv --projectName

Checklist

• My code follows the contributor guidelines of this project;
• I have updated the documentation;
• I have added tests;
• New and existing unit tests pass locally with my changes;