Stop using just command to run launcher in integration tests #606

Job	Run time
build_attest_all (buildconfigs/key_xor_test_app.sh)	16m 1s
build_attest_all (buildconfigs/oak_client_android_app.sh)	49m 47s
build_attest_all (buildconfigs/oak_containers_agent.sh)	9m 45s
build_attest_all (buildconfigs/oak_containers_kernel.sh)	33m 9s
build_attest_all (buildconfigs/oak_containers_orchestrator.sh)	25m 12s
build_attest_all (buildconfigs/oak_containers_stage1.sh)	21m 40s
build_attest_all (buildconfigs/oak_containers_syslogd.sh)	22m 5s
build_attest_all (buildconfigs/oak_containers_system_image.sh)	24m 25s
build_attest_all (buildconfigs/oak_containers_nvidia_system_image.sh)	2m 47s
build_attest_all (buildconfigs/oak_echo_enclave_app.sh)	8m 52s
build_attest_all (buildconfigs/oak_echo_raw_enclave_app.sh)	6m 22s
build_attest_all (buildconfigs/oak_functions_enclave_app.sh)	5m 49s
build_attest_all (buildconfigs/oak_functions_insecure_enclave_app.sh)	5m 31s
build_attest_all (buildconfigs/oak_orchestrator.sh)	5m 22s
build_attest_all (buildconfigs/oak_restricted_kernel_simple_io_init_rd_wrapper_bin.sh)	41m 19s
build_attest_all (buildconfigs/stage0_bin.sh)	41m 16s
build_attest_all (buildconfigs/stage0_bin_tdx.sh)	41m 7s
	6h 0m 29s

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