[forward port to master] tracing: allow the `Resource` to be set externally #2057

Job	Run time
prepare	1s
test / prepare	1m 53s
test / run (containerd, ./frontend/dockerfile, integration)	4m 8s
test / run (containerd, ./frontend/dockerfile, dockerfile)	5m 37s
test / run (containerd-rootless, ./frontend/dockerfile, integration)	4m 11s
test / run (containerd-rootless, ./frontend/dockerfile, dockerfile)	5m 47s
test / run (containerd-1.6, ./frontend/dockerfile, integration)	4m 8s
test / run (containerd-1.6, ./frontend/dockerfile, dockerfile)	6m 0s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, integration)	4m 25s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	7m 25s
test / run (oci, ./frontend/dockerfile, integration)	6m 3s
test / run (oci, ./frontend/dockerfile, dockerfile)	5m 21s
test / run (oci-rootless, ./frontend/dockerfile, integration)	3m 40s
test / run (oci-rootless, ./frontend/dockerfile, dockerfile)	4m 44s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, integration)	3m 51s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	5m 44s
image (mainline)	7m 10s
image (labs)	5m 7s
release	0s
	1h 25m 15s

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