Setting TFM to net6 for ExtensionsProj (#4244)

* setting tfm to net8

* Update src/Azure.Functions.Cli/StaticResources/ExtensionsProj.csproj.template

Co-authored-by: Jacob Viau <[email protected]>

* update tests to skip npm install

---------

Co-authored-by: Jacob Viau <[email protected]>

Author: aishwaryabh

src/Azure.Functions.Cli/StaticResources/ExtensionsProj.csproj.template

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
 	<WarningsAsErrors></WarningsAsErrors>
 	<DefaultItemExcludes>**</DefaultItemExcludes>
   </PropertyGroup>

test/Azure.Functions.Cli.Tests/E2E/InitTests.cs

@@ -45,7 +45,7 @@ public Task init_with_worker_runtime(string workerRuntime)
 
             return CliTester.Run(new RunConfiguration
             {
-                Commands = new[] { $"init . --worker-runtime {workerRuntime}" },
+                Commands = new[] { $"init . --worker-runtime {workerRuntime} --skip-npm-install" },
                 CheckFiles = files.ToArray(),
                 OutputContains = new[]
                 {
@@ -543,7 +543,7 @@ public Task javascript_adds_packagejson()
         {
             return CliTester.Run(new RunConfiguration
             {
-                Commands = new[] { "init . --worker-runtime node" },
+                Commands = new[] { "init . --worker-runtime node --skip-npm-install" },
                 CheckFiles = new FileResult[]
                 {
                     new FileResult