C# -> 14

Author: sharpjs

.github/workflows/build.yaml

@@ -64,7 +64,7 @@ jobs:
         with:
           dotnet-version: |
             6.0.x
-            8.0.x
+            10.0.x
 
       - name: Stamp Version
         id: stamp

Directory.Build.props

@@ -34,7 +34,7 @@
   <!-- Build properties -->
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
-    <LangVersion>13</LangVersion>
+    <LangVersion>14</LangVersion>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <InheritDocEnabled>true</InheritDocEnabled>