Fix for: Malicious OData requests trigger exception monitoring

[skofman1]

Addresses https://github.com/NuGet/Engineering/issues/3303

No need to log exceptions for user input errors. Those are not "exceptional".

[loic-sharma]

Will this still return an HTTP 400 response status code? Can we add a functional test for these cases?

[skofman1]

@loic-sharma , yes, this still returns a 400. I manually tested this. The change only prevents an exception from getting logged.
I think adding a functional test here is out of scope and low pri. I will manually test during rollout that the 400 behavior is not impacted and exceptions are no longer logged for it.