* Refactor test environment initialization.

Replaced hardcoded QA environment with dynamic environment retrieval from respective objects to improve maintainability and flexibility. Also added `getEnvironment()` method in `AbstractIntegrationTest` for consistent environment access across test classes.

* Add integration test for telemetry connection onboarding

This test validates the onboarding process for a new telemetry connection, ensuring the response contains all necessary authentication and connection details. The test is currently disabled and requires replacing the placeholder registration code to run.

* Remove unused imports of `QA` environment from test files.

The `QA` environment import was present but unused across multiple test files. This cleanup improves code readability and eliminates unnecessary dependencies, aligning with best practices.

This commit introduces a test to validate the generation of an authorization URL for the secured onboarding process using given parameters. It ensures that the URL matches the expected format and contains the necessary parts like application ID, state, and response type.