Add props/targets disabling Microsoft.Extensions.Logging.Generators for .NET 8

Resolves #4772

Author: RussKie

src/Libraries/Microsoft.Extensions.Telemetry.Abstractions/buildTransitive/net8.0/Microsoft.Extensions.Telemetry.Abstractions.props

@@ -0,0 +1,6 @@
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <!-- This package should replace the Microsoft.Extensions.Logging.Abstractions source generator, so we set the property to remove the source generator from the project. -->
+  <PropertyGroup>
+    <DisableMicrosoftExtensionsLoggingSourceGenerator>true</DisableMicrosoftExtensionsLoggingSourceGenerator>
+  </PropertyGroup>
+</Project>

src/Libraries/Microsoft.Extensions.Telemetry.Abstractions/buildTransitive/net8.0/Microsoft.Extensions.Telemetry.Abstractions.targets

@@ -0,0 +1,16 @@
+<Project>
+  <!-- This package should replace the Microsoft.Extensions.Logging.Abstractions source generator. -->
+  <Target Name="_Microsoft_Extensions_Logging_AbstractionsRemoveAnalyzers" 
+          Condition="'$(DisableMicrosoftExtensionsLoggingSourceGenerator)' == 'true'"
+          AfterTargets="ResolveReferences">
+    <ItemGroup>
+      <_Microsoft_Extensions_Logging_AbstractionsAnalyzer Include="@(Analyzer)" Condition="'%(Analyzer.AssemblyName)' == 'Microsoft.Extensions.Logging.Generators' Or
+                                                                                           '%(Analyzer.NuGetPackageId)' == 'Microsoft.Extensions.Logging.Abstractions'" />
+    </ItemGroup>
+
+    <!-- Remove Microsoft.Extensions.Logging.Abstractions Analyzer -->
+    <ItemGroup>
+      <Analyzer Remove="@(_Microsoft_Extensions_Logging_AbstractionsAnalyzer)" />
+    </ItemGroup>
+  </Target>
+</Project>