[instrumentation-fetch] Response with null body status cannot have body errors #6036
Description
What happened?
instrumentation-fetch is throwing a "Response with null body status cannot have body" TypeError when the instrumented request returns a null-body-status response (status codes 101, 204, 205, or 304)
Steps to Reproduce
I've created a tests to reproduce it here: m0sa@ecb5557
That test passes in v0.205.0, but fails in v0.206.0 and v0.207.0.