Bump Microsoft.CodeAnalysis.CSharp from 5.3.0 to 5.6.0

---
updated-dependencies:
- dependency-name: Microsoft.CodeAnalysis.CSharp
  dependency-version: 5.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -13,7 +13,7 @@
     <PackageVersion Include="FAnsiSql.Legacy" Version="3.6.3" />
     <PackageVersion Include="LibArchive.Net" Version="0.3.1" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="5.3.0" />
-    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="5.3.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="5.6.0" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
     <PackageVersion Include="NPOI" Version="2.8.0" />
     <PackageVersion Include="NLog" Version="6.1.3" />