Some Linux docker distributions do not support Brainpool, e.g. Mariner

[mregen]

Type of issue

• Bug
• Enhancement
• Compliance
• Question
• Help wanted

Current Behavior

See failing tests in a mariner docker container...

Failed CreateSelfSignedForECDsaDefaultTest(brainpoolP256r1-SHA256) [< 1 ms]
  Error Message:
   System.PlatformNotSupportedException : The specified curve '1.3.36.3.3.2.8.1.1.7' or its parameters are not valid for this platform.
  Stack Trace:
     at System.Security.Cryptography.ECOpenSsl.GenerateKey(ECCurve curve)
   at System.Security.Cryptography.ECDsa.Create(ECCurve curve)
   at Opc.Ua.Security.Certificates.CertificateBuilder.CreateForECDsa() in /__w/1/s/Libraries/Opc.Ua.Security.Certificates/X509Certificate/CertificateBuilder.cs:line 191
   at Opc.Ua.Security.Certificates.Tests.CertificateTestsForECDsa.CreateSelfSignedForECDsaDefaultTest(ECCurveHashPair eccurveHashPair) in /__w/1/s/Tests/Opc.Ua.Security.Certificates.Tests/CertificateTestsForECDsa.cs:line 118
   at InvokeStub_CertificateTestsForECDsa.CreateSelfSignedForECDsaDefaultTest(Object, Span`1)
   at System.Reflection.MethodBaseInvoker.InvokeWithOneArg(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)

Expected Behavior

Tests and Opc.Ua.Core gracefully detects that specific curves are unsupported, so these profiles are disabled.

Steps To Reproduce

No response

Environment

- OS:
- Environment:
- Runtime:
- Nuget Version:
- Component:
- Server:
- Client:

Anything else?

No response

[mregen]

fixed with #2903