fix FakeRate method RADIUS

As already discussed in the Forum thread https://corryvreckan-forum.web.cern.ch/t/noise-estimate-with-fake-rate-of-analysisefficiency-module/ there is a bug in the AnalysisEfficiency module at the moment which results in wrong results for the fake rate histograms when using the RADIUS method. Tracks with an intercept got skipped, but we actually wanted to skip tracks without an intercept.

The problem with the CI imho seems to be not a problem of my code, but instead a problem with the pipeline itself. The failed job "cmp:macos-clang" does not show a trace at all and is simply marked as "There has been a timeout failure or the job got stuck. Check your timeout limits or try again".