chore: Downgrade c# langversion from 11 -> 10

Author: davidkallesen

Directory.Build.props

@@ -16,9 +16,9 @@
 
   <PropertyGroup Label="Compile settings">
     <Nullable>enable</Nullable>
-    <LangVersion>11.0</LangVersion>
+    <LangVersion>10.0</LangVersion>
     <ImplicitUsings>enable</ImplicitUsings>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <NoWarn>1573,1591,1712,CA1014</NoWarn>
 

atc-coding-rules-updater.json

@@ -1,5 +1,5 @@
 {
-	"projectTarget": "DotNet7",
+	"projectTarget": "DotNet6",
 	"mappings": {
 		"src": { "paths": [ "src" ] },
 		"test": { "paths": [ "test" ] }