[extractor] modified the code to load the model, to be consistent with MCDeepPixBiS

4 jobs for deeppixbis-extractor in 10 minutes and 36 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #182195
docker
build_linux_36

00:09:12

72.0%
passed #182196
docker
build_linux_37

00:10:35

72.0%
passed #182193
macosx
build_macosx_36

00:02:11

passed #182194
macosx
build_macosx_37

00:02:12