Merge pull request #61 from prjseal/feature/dotnet-9

change dotnet version and language version

Author: prjseal

PSW/PSW/PSW.csproj

@@ -1,10 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
-	  <LangVersion>10</LangVersion>
+	<LangVersion>13</LangVersion>
   </PropertyGroup>