PX4 update: export px4 binaries to temp dir #1444

Job	Run time
variables	1s
fc_matrix (fmu-v6xrt) / build	6m 55s
fc_matrix (pixhawk) / build	6m 1s
fc_matrix (saluki-nxp93_flat) / build	5m 37s
fc_matrix (saluki-pi_amp) / build	8m 46s
fc_matrix (saluki-pi_default) / build	8m 41s
fc_matrix (saluki-pi_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-pi/px4_bin_ed25519_... / build	8m 56s
fc_matrix (saluki-v2_amp) / build	8m 49s
fc_matrix (saluki-pi_flat) / build	6m 56s
fc_matrix (saluki-v2_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v2/px4_bin_ed25519_... / build	8m 53s
fc_matrix (saluki-v2_default) / build	8m 48s
fc_matrix (saluki-v2_flat) / build	6m 44s
fc_matrix (saluki-v3_amp) / build	10m 8s
fc_matrix (saluki-v3_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v3/px4_bin_ed25519_... / build	8m 46s
fc_matrix (saluki-v3_default) / build	9m 20s
fc_matrix (saluki-v3_flat) / build	6m 44s
build px4fwupdater	2m 17s
upload builds to UAE artifactory	3m 38s
upload px4fwupdater to docker registry	1m 47s
upload px4fwupdater to UAE docker registry	0s
	2h 7m 47s

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