Jenkins-mahara: run only one feature file

(behat number fix)
7 jobs for master
Status Job ID Name Coverage
  Build
canceled build #8

 
  Test
canceled code_quality #10
allowed to fail

canceled container_scanning #14
allowed to fail

canceled dependency_scanning #13
allowed to fail

canceled license_management #11
allowed to fail

canceled sast #12
allowed to fail

canceled test #9