fix(instrumentation-undici): Fix RequestType

[mtreinik]

• Previously RequestType was accidentally assigned with UndiciResponse while the correct type is UndiciRequest

Which problem is this PR solving?

• ResponseHookFunction<RequestType> had incorrect type

Short description of the changes

• Use correct type UndiciRequest for RequestType instead of wrong type UndiciResponse

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: mtreinik / name: Mikko Reinikainen (c865f1f)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.85%. Comparing base (7633cae) to head (c865f1f).
Report is 1 commits behind head on main.

Additional details and impacted files

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  Coverage   90.85%   90.85%           
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  Files         159      159           
  Lines        7853     7853           
  Branches     1622     1622           
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  Hits         7135     7135           
  Misses        718      718