cubicweb-tracker #4180199 fix deprecation warnings from cubicweb 3.19 [validation pending]

both in the code and tests

prioritynormal
typetask
done in1.16.1
load1.000
load left0.000
closed by#63bd3291a86b [views] stop using deprecated user_rql_callback
patch[views] stop using deprecated user_rql_callback [applied]tests: modernize unittest_tracker [applied][hooks] silence cubicweb 3.19 deprecation warning [applied][test] update to new automatic web test api [applied]