Update to .NET 10 with focus on OpenAPI breaking changes

[marcominerva]

Upgrade the project to target .NET 10. Carefully review and address any breaking changes, especially those related to OpenAPI integration, as .NET 10 may introduce new behaviors or incompatibilities for OpenAPI tools or generation.

Tasks:

• Update project files to use .NET 10.
• Review all usages of OpenAPI/Swagger and related configuration.
• Refactor code and update dependencies to accommodate any breaking changes in .NET 10 or OpenAPI.
• Test and verify OpenAPI endpoints and documentation generation after the upgrade.
• Document any required migration steps or important changes encountered during the process.

Pay particular attention to any official .NET 10 or OpenAPI migration documentation for additional required adjustments.