bump to .net 10

Author: encse

.vscode/launch.json

@@ -11,7 +11,7 @@
             "request": "launch",
             "preLaunchTask": "build",
             // If you have changed target frameworks, make sure to update the program path.
-            "program": "${workspaceFolder}/bin/Debug/net9.0/adventofcode.dll",
+            "program": "${workspaceFolder}/bin/Debug/net10.0/adventofcode.dll",
             "args": ["${relativeFileDirname}"],
             "cwd": "${workspaceFolder}",
             // For more information about the 'console' field, see https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md#console-terminal-window

adventofcode.csproj

@@ -1,8 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net9.0</TargetFramework>
-    <LangVersion>13</LangVersion>
+    <TargetFramework>net10.0</TargetFramework>
+    <LangVersion>14</LangVersion>
     <CheckForOverflowUnderflow>true</CheckForOverflowUnderflow>
     <UseAppHost>false</UseAppHost>
   </PropertyGroup>