Nozomi Networks Add Alert Update Workflow and Improve Authentication Resilience

[nicoloereni]

• Added a new workflow file NN-Universal-Alert-Updated-Workflow.xml for improved alert retrieval and processing, including robust pagination, bookmarking, and error handling.
• Enhanced bearer token extraction logic in NN-Universal-Alert-Workflow.xml and NN-Universal-Asset-Workflow.xml to handle both Authorization and authorization header casing, improving compatibility with different API responses.