Trust HTTPS certificate on SLES

Add instructions to [trust HTTPS certificate on RHEL](https://learn.microsoft.com/en-us/aspnet/core/security/enforcing-ssl?view=aspnetcore-6.0&tabs=visual-studio#trust-https-certificate-on-linux)

SLES version of:

- [ ] [Ubuntu trust the certificate for service-to-service communication](https://learn.microsoft.com/en-us/aspnet/core/security/enforcing-ssl?view=aspnetcore-6.0&tabs=visual-studio#ubuntu-trust-the-certificate-for-service-to-service-communicatio)
- [ ] Trust HTTPS certificate on Linux using Edge or Chrome
- [ ] Trust the certificate with Firefox on Linux

Partial instructions [here](https://github.com/dotnet/aspnetcore/issues/32842)

related #28278
parent: #27603

---
#### Document Details

⚠ *Do not edit this section. It is required for learn.microsoft.com ➟ GitHub issue linking.*

* ID: c7ddfb2f-5dea-5e31-2a27-02a4dc16104c
* Version Independent ID: 12ca0b9a-2638-a4ce-c45f-d4579c83dafb
* Content: [Enforce HTTPS in ASP.NET Core](https://learn.microsoft.com/en-us/aspnet/core/security/enforcing-ssl?view=aspnetcore-6.0&tabs=visual-studio#ubuntu-trust-the-certificate-for-service-to-service-communication)
* Content Source: [aspnetcore/security/enforcing-ssl.md](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/security/enforcing-ssl.md)
* Product: **aspnet-core**
* Technology: **aspnetcore-security**
* GitHub Login: @Rick-Anderson
* Microsoft Alias: **riande**