chore(tests): added integrated tests

[petruki]

This pull request introduces environment variable support for API keys using python-dotenv, and adds new integration tests for the Switcher client. The main changes include updating dependencies, refactoring test setup to use environment variables, and implementing integration tests that interact with the remote API.

Environment variable and dependency updates:

• Added python-dotenv to the Pipfile to enable loading environment variables from a .env file.
• Updated test setup in tests/playground/index.py to load the API key from the environment using dotenv, replacing the hardcoded value with os.getenv('SWITCHER_API_KEY').

Testing improvements:

• Added a new file tests/test_switcher_integration.py with integration tests for key Switcher client functionalities, including API calls, snapshot loading, and switcher availability checks. These tests use the API key from the environment and skip execution if it is not set.
• Changed the default test use case in tests/playground/index.py to use uc_simple_api_call() instead of uc_watch_snapshot().

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud