add small-scale-traffic-generation as contrib #7529

Job	Run time
build (matsim)	16s
build (contribs/vsp)	24s
build (contribs/common)	32s
build (contribs/taxi)	30s
build (contribs/minibus)	31s
build (contribs/signals)	24s
build (contribs/bicycle)	28s
build (contribs/cadytsIntegration)	24s
build (contribs/drt)	25s
build (contribs/drt-extensions)	22s
build (contribs/discrete_mode_choice)	25s
build (contribs/carsharing)	25s
build (contribs/commercialTrafficApplications)	24s
build (contribs/av)	25s
build (contribs/locationchoice)	21s
build (contribs/ev)	25s
build (contribs/dvrp)	25s
build (contribs/emissions)	25s
build (contribs/decongestion)	25s
build (contribs/noise)	27s
build (contribs/accidents)	26s
build (contribs/freight)	20s
build (contribs/freightreceiver)	25s
build (contribs/parking)	22s
build (contribs/matrixbasedptrouter)	26s
build (contribs/accessibility)	22s
build (contribs/integration)	24s
build (contribs/multimodal)	22s
build (contribs/protobuf)	35s
build (contribs/shared_mobility)	27s
build (contribs/socnetsim)	26s
build (contribs/sumo)	21s
build (contribs/pseudosimulation)	25s
build (contribs/railsim)	23s
build (contribs/roadpricing)	25s
build (contribs/analysis)	37s
build (contribs/hybridsim)	27s
build (contribs/informed-mode-choice)	29s
build (contribs/otfvis)	23s
build (contribs/osm)	26s
build (contribs/application)	25s
build (contribs/simwrapper)	21s
build (contribs/sbb-extensions)	24s
build (contribs/simulatedannealing)	28s
build (benchmark)	30s
verify-all-jobs-successful (push-or-external-PR)	1s
	19m 3s

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