Set jazzy as default ros distribution #33

Job	Run time
build	2m 46s
scenario-files-validation	3m 17s
test-example-library	1m 45s
test-example-external-method	1m 44s
test-example-moveit2	2m 8s
test-example-multirobot	4m 30s
test-example-nav2	2m 19s
test-example-simulation	2m 38s
test-example-variation	1m 52s
test-example-scenario	1m 53s
test-scenario-execution	5m 7s
test-scenario-execution-gazebo	3m 10s
test-scenario-execution-nav2	7m 6s
test-scenario-execution-pybullet	1m 54s
test-scenario-execution-ros	9m 19s
test-scenario-execution-x11	2m 5s
tests	14s
	53m 47s

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