Filename not mentioned in error

### Brief Issue Summary

When using this extension to build via cmake, I'm getting the following error:

[rollbar] Unhandled exception: Unhandled Promise rejection: build SyntaxError: Unexpected non-whitespace character after JSON at position 186 {}

This error is quite useless to me as:
- I don't know what rollbar is
- It doesn't mention where the JSON was retrieved from

Can this error be extended with some information about the actual source of the JSON?

### CMake Tools Diagnostics

_No response_

### Debug Log

_No response_

### Additional Information

_No response_

Start by reproducing the CMake Tools build failure and tracing where the JSON parse error is reported. Identify the source of the JSON and the error-reporting path; done means the resulting error identifies the JSON source and provides useful context about Rollbar.

Written by the indexing model from the issue text.