completely disable JuMP bridge constraints

(we do not use them at all, which is likely gonna hold for some time)
3 jobs for mk-disable-jump-bridges in 9 minutes and 38 seconds (queued for 1 second)
Status Name Job ID Coverage
  Test Basic
passed docker:v1.6 #291784

00:07:42

passed format #291783
privileged

00:01:55

 
  Documentation
passed doc-tests:v1.6 #291785

00:01:56