CI: Reduce to single ROS version #45

Job	Run time
build	2m 48s
build	2m 48s
test-scenario-execution-ros	12m 54s
test-scenario-execution-ros	12m 54s
test-example-multirobot	17m 14s
test-example-multirobot	4m 34s
test-example-library	1m 49s
test-example-library	1m 49s
test-example-nav2	2m 24s
test-example-nav2	2m 24s
scenario-files-validation	3m 19s
scenario-files-validation	3m 19s
test-example-scenario	1m 50s
test-example-scenario	1m 50s
test-example-simulation	2m 34s
test-example-simulation	2m 34s
test-example-variation	1m 47s
test-example-variation	1m 47s
test-scenario-execution	5m 15s
test-scenario-execution	5m 15s
test-example-external-method	1m 47s
test-example-external-method	1m 47s
test-example-moveit2	1m 59s
test-example-moveit2	2m 28s
test-scenario-execution-gazebo	3m 21s
test-scenario-execution-gazebo	3m 21s
test-scenario-execution-nav2	14m 15s
test-scenario-execution-nav2	14m 15s
test-scenario-execution-pybullet	1m 49s
test-scenario-execution-pybullet	1m 49s
test-scenario-execution-x11	2m 1s
test-scenario-execution-x11	2m 1s
tests	15s
tests	23s
	2h 22m 39s

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