[tests] Try to re-create registry when docker run failed. #915

Job	Run time
Test scripts running in parallel	2m 43s
shellcheck	10s
Test scripts (gantry_cleanup_images_spec.sh)	56s
Test container	2m 40s
Test scripts (gantry_common_options_spec.sh)	1m 30s
Test scripts (gantry_filters_spec.sh)	57s
Test scripts (gantry_jobs_spec.sh)	39s
Test scripts (gantry_login_docker_config_spec.sh)	53s
Test scripts (gantry_login_negative_spec.sh)	59s
Test scripts (gantry_login_spec.sh)	1m 11s
Test scripts (gantry_manifest_spec.sh)	1m 4s
Test scripts (gantry_notify_spec.sh)	1m 13s
Test scripts (gantry_parallel_spec.sh)	59s
Test scripts (gantry_rollback_spec.sh)	47s
Test scripts (gantry_service_multiple_spec.sh)	46s
Test scripts (gantry_service_no_running_tasks_spec.sh)	51s
Test scripts (gantry_service_single_spec.sh)	55s
Test scripts (gantry_update_options_spec.sh)	54s
Build and push Docker image	1s
	20m 8s

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