Update Directory.Build.props with newer version of packages required for .NET 8 (#2272)

Author: seesharprun

Directory.Build.props

@@ -21,19 +21,19 @@ See https://docs.microsoft.com/en-us/visualstudio/msbuild/customize-your-build?v
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="7.0.0">
+    <PackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="8.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
     <PackageReference Include="SmartAnalyzers.CSharpExtensions.Annotations" Version="4.2.8">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.CodeAnalysis.Compilers" Version="4.6.0" >
+    <PackageReference Include="Microsoft.CodeAnalysis.Compilers" Version="4.8.0" >
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.Net.Compilers.Toolset" Version="4.6.0">
+    <PackageReference Include="Microsoft.Net.Compilers.Toolset" Version="4.8.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>