LCORE-335: Add CORS middleware to FastAPI application

[jrobertboos]

Description

This update introduces the CORSMiddleware to the FastAPI application, allowing cross-origin requests from any origin. The middleware is configured to accept all methods and headers, enhancing the application's flexibility in handling requests from different clients.

Type of change

• Refactor
• New feature
• Bug fix
• CVE fix
• Optimization
• Documentation Update
• Configuration Update
• Bump-up service version
• Bump-up dependent library
• Bump-up library or tool used for development (does not change the final image)
• CI configuration change
• Konflux configuration change
• Unit tests improvement
• Integration tests improvement
• End to end tests improvement

Related Tickets & Documents

• Related Issue LCORE-335
• Closes LCORE-335

Checklist before requesting a review

• I have performed a self-review of my code.
• PR has passed all pre-merge test jobs.
• If it is a core feature, I have added thorough tests.

Testing

• Please provide detailed steps to perform tests related to this code change.
• How were the fix/results from this change verified? Please provide relevant screenshots or results.

[jrobertboos]

If you could review this @tisnik that would be great!

[tisnik]

lgtm, thank you