Enhance PI Web API integration and update test configurations
- Adjusted execution counts in tests.ipynb for better notebook state management.
- Introduced a new pi_web_api_query structure in tests.ipynb for improved API configuration.
- Updated API class to format timestamps using DATETIME_FORMAT_WITH_TZ.
- Refactored PIWebAPIClient to ensure correct web ID retrieval and emit metrics accurately.
- Streamlined workflow parameters in pi_web_api_scouter.py for clarity and flexibility.