Add aspire-py-starter to CLI template factory

Co-authored-by: eerhardt <8291187+eerhardt@users.noreply.github.com>

Author: Copilot

src/Aspire.Cli/Resources/TemplatingStrings.Designer.cs

@@ -132,6 +132,9 @@
   <data name="AspireServiceDefaults_Description" xml:space="preserve">
     <value>Service defaults</value>
   </data>
+  <data name="AspirePyStarter_Description" xml:space="preserve">
+    <value>Python and JavaScript starter (experimental)</value>
+  </data>
   <data name="AspireAppHostSingleFile_Description" xml:space="preserve">
     <value>Single-file AppHost (experimental)</value>
   </data>