Bump toolkit version to 0.2.0 in template (#39292)

This bumps the version of the toolkit consumed by the template to 0.2.0

~Ironically, I have not yet published 0.2. I'm spinning that CI build currently. But I'll have that uploaded tomorrow morning at the latest~

EDIT: package is uploaded now

src/modules/cmdpal/ExtensionTemplate/TemplateCmdPalExtension/Directory.Packages.props

@@ -3,7 +3,7 @@
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="Microsoft.CommandPalette.Extensions" Version="0.1.0" />
+    <PackageVersion Include="Microsoft.CommandPalette.Extensions" Version="0.2.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="9.0.0-preview.24508.2" />
     <PackageVersion Include="Microsoft.Web.WebView2" Version="1.0.2903.40" />
     <PackageVersion Include="Microsoft.Windows.CsWin32" Version="0.2.46-beta" />