[.NET Analyzers] Add new approved namespace (#7674)

The focus of these changes is to add the "Azure.Compute"
namespace to the approved list, per Krzysztof's
approval for use in the `Azure.Compute.Batch` package.

src/dotnet/Azure.ClientSdk.Analyzers/Azure.ClientSdk.Analyzers.Tests/AZC0001Tests.cs

@@ -20,7 +20,7 @@ public class Program { }
 
             var diagnostic = Verifier.Diagnostic("AZC0001")
                 .WithMessage("Namespace 'RandomNamespace' shouldn't contain public types. Use one of the following pre-approved namespace groups (https://azure.github.io/azure-sdk/registered_namespaces.html):" +
-                             " Azure.AI, Azure.Analytics, Azure.Communication, Azure.Containers, Azure.Core.Expressions, Azure.Data, Azure.Developer, Azure.DigitalTwins, Azure.Identity, Azure.IoT, Azure.Learn, Azure.Management, Azure.Media, Azure.Messaging, Azure.MixedReality, Azure.Monitor, Azure.ResourceManager, Azure.Search, Azure.Security, Azure.Storage, Azure.Template, Microsoft.Extensions.Azure")
+                             " Azure.AI, Azure.Analytics, Azure.Communication, Azure.Compute, Azure.Containers, Azure.Core.Expressions, Azure.Data, Azure.Developer, Azure.DigitalTwins, Azure.Identity, Azure.IoT, Azure.Learn, Azure.Management, Azure.Media, Azure.Messaging, Azure.MixedReality, Azure.Monitor, Azure.ResourceManager, Azure.Search, Azure.Security, Azure.Storage, Azure.Template, Microsoft.Extensions.Azure")
                 .WithSpan(2, 11, 2, 26);
 
             await Verifier.VerifyAnalyzerAsync(code, diagnostic);

src/dotnet/Azure.ClientSdk.Analyzers/Azure.ClientSdk.Analyzers/ClientAssemblyNamespaceAnalyzer.cs

@@ -15,6 +15,7 @@ public class ClientAssemblyNamespaceAnalyzer : SymbolAnalyzerBase
             "Azure.AI",
             "Azure.Analytics",
             "Azure.Communication",
+            "Azure.Compute",
             "Azure.Containers",
             "Azure.Core.Expressions",
             "Azure.Data",