Fix classic SITL after being broken by PR#743 #1902

Job	Run time
variables	1s
fc_matrix (fmu-v6xrt) / build	7m 22s
fc_matrix (pixhawk) / build	6m 14s
fc_matrix (saluki-nxp93_flat) / build	5m 53s
fc_matrix (saluki-pi_amp) / build	9m 15s
fc_matrix (saluki-pi_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-pi/px4_bin_ed25519_... / build	9m 19s
fc_matrix (saluki-pi_default) / build	9m 33s
fc_matrix (saluki-pi_flat) / build	7m 5s
fc_matrix (saluki-v2_amp) / build	9m 7s
fc_matrix (saluki-v2_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v2/px4_bin_ed25519_... / build	9m 4s
fc_matrix (saluki-v2_default) / build	8m 58s
fc_matrix (saluki-v2_flat) / build	6m 51s
fc_matrix (saluki-v3_amp) / build	9m 27s
fc_matrix (saluki-v3_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v3/px4_bin_ed25519_... / build	9m 0s
fc_matrix (saluki-v3_default) / build	9m 38s
fc_matrix (saluki-v3_flat) / build	6m 48s
build px4fwupdater	2m 18s
upload builds to UAE artifactory	4m 40s
upload px4fwupdater to docker registry	1m 43s
upload px4fwupdater to UAE docker registry	0s
	2h 12m 16s

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