Bump docker/build-push-action from 6.9.0 to 6.10.0 #868

Job	Run time
shellcheck	10s
Test script (gantry_cleanup_images_spec.sh)	2m 0s
Test script (gantry_common_options_spec.sh)	2m 5s
Test script (gantry_filters_spec.sh)	2m 16s
Test script (gantry_login_negative_spec.sh)	2m 24s
Test script (gantry_login_spec.sh)	2m 1s
Test script (gantry_manifest_spec.sh)	2m 32s
Test script (gantry_notify_spec.sh)	2m 35s
Test script (gantry_parallel_spec.sh)	2m 16s
Test script (gantry_rollback_spec.sh)	2m 17s
Test script (gantry_service_multiple_spec.sh)	1m 46s
Test script (gantry_service_no_running_tasks_spec.sh)	1m 43s
Test script (gantry_service_single_spec.sh)	1m 28s
Test script (gantry_update_options_spec.sh)	2m 19s
Build and push Docker image	0s
Test container	0s
	27m 52s

Provide feedback