An error occurs when creating a Blob trigger function with "Add BlobTrigger function to the Blueprint" creation type

[v-xinda]

OS: All Azure Resources extension: 20231114.2 Azure Functions Extension Version: v1.13.1

Repro Steps:

1. Create a Python V2 project with HTTP trigger.
2. F1 -> Azure Functions: Create Function... -> Blob trigger -> Add BlobTrigger function to the Blueprint -> Select "function_app.py" file -> Open -> Fill the default value for the rest steps.
3. Check whether no error occurs.

Expect: No error occurs.

Actual: An error occurs.

More Info:

1. This issue doesn't reproduce when creating Blob trigger function with other creation types.
2. This issue doesn't reproduce for other templates.

[MicroFish91]

We should double check to see if this is a template error, if so we may need to file an upstream issue with their team.