Pyramid tween only handles HTTPException

[gregbuehler]

Describe your environment
Seeing this exhibited in Pyramid 1.10 and as far back as Pyramid 1.7.

Steps to reproduce
Raise a non-HTTPException.

What is the expected behavior?
Tweens should process normally.

What is the actual behavior?
An error for use of response_or_exception before assignment is raised.

Additional context
The problem exists here https://github.com/open-telemetry/opentelemetry-python-contrib/blob/main/instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/callbacks.py#L146-L157. It seems there should be an additional exception case for BaseException to initialize response_or_exception.

[owais]

Proposed fix makes sense. PRs welcome :)