Update dependency Microsoft.CodeAnalysis.CSharp to v4.7.0

Author: renovate[bot]

src/DotnetDispatcher.Generator/DotnetDispatcher.Generator.csproj

@@ -18,7 +18,7 @@
         <PackageLicenseExpression>MIT</PackageLicenseExpression>
     </PropertyGroup>
     <ItemGroup>
-        <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.6.0" PrivateAssets="all" />
+        <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.7.0" PrivateAssets="all" />
         <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4">
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>