API Testing Tool changes - Parent Issue

Parent issue tracking all API Tool changes required. Postman is no longer recommended, switch content to using the latest recommended API testing tool appropriate for the scenario.

**Repo: dotnet/aspnetcore.docs:**

- [x] #31965 21 Topics/files where the API tool recommendation or referral can be updated right away.
(Completed by Wade)

The following topics require extensive rewrites to use the latest recommended API testing tool per its scenario context:

- [x] - #32198
(queued for April 2024 sprint, Wade taking this one.)

- [x] - #31984
- [mobile/native-mobile-backend.md](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/mobile/native-mobile-backend.md )
- [Live doc](https://learn.microsoft.com/en-us/aspnet/core/mobile/native-mobile-backend)
(queued for April 2024 sprint, Wade taking this one)
- [x] - #31985
- [mvc\advanced\custom-model-binding.md](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/mvc/advanced/custom-model-binding.md)
- [Live doc link](https://learn.microsoft.com/en-us/aspnet/core/mvc/advanced/custom-model-binding)
(queued for April 2024 sprint, Wade taking this one.)
- [ ] - #31986
- [security/authorization/policies.md](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/security/authorization/policies.md)
- [Live doc link](https://learn.microsoft.com/en-us/aspnet/core/security/authorization/policies)
(Rick is taking this one for his topic, I was not up on this area at all, too heavy ramp up for postman.json approach -WP)
- [x] - #31980
- [tutorials/min-web-api.md](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/tutorials/min-web-api.md)
- [Live doc link](https://learn.microsoft.com/en-us/aspnet/core/tutorials/min-web-api)
(Completed by Wade)

**Repo: dotnet/aspnetdocs:**

- [x] - #31981
(Completed by Wade)