Default to .NET 8 for inproc (#4557)

Author: liliankasem

release_notes.md

@@ -10,4 +10,5 @@
 - Fix dotnet templates installation (#4538)
 - Disable diagnostic events in local development by replacing the `IDiagnosticEventRepository` with a `DiagnosticEventNullRepository` (#4542)
 - Add `func pack` support for in-proc functions (#4529)
-- Default to remote build for `func pack` for python apps (#4530)
+- Default to remote build for `func pack` for python apps (#4530)
+- Update `func init` to default to the .NET 8 template for in-proc apps (#4557)

src/Cli/func/Actions/LocalActions/InitAction.cs

@@ -21,7 +21,7 @@ internal class InitAction : BaseAction
     {
         // Default to .NET 8 if the target framework is not specified
         private const string DefaultTargetFramework = Common.TargetFramework.Net8;
-        private const string DefaultInProcTargetFramework = Common.TargetFramework.Net6;
+        private const string DefaultInProcTargetFramework = Common.TargetFramework.Net8;
         private readonly ITemplatesManager _templatesManager;
         private readonly ISecretsManager _secretsManager;
         internal static readonly Dictionary<Lazy<string>, Task<string>> FileToContentMap = new Dictionary<Lazy<string>, Task<string>>