Bump google.golang.org/grpc from 1.46.2 to 1.60.0 in /tracegen #8928

Job	Run time
setup-environment	9m 4s
checks	33s
check-collector-module-version	6s
correctness-metrics	1m 58s
build-examples	3m 42s
correctness-traces	2m 44s
integration-tests	2m 59s
lint-matrix (receiver-0)	39s
lint-matrix (receiver-1)	41s
unittest-matrix (1.18, receiver-0)	4m 21s
unittest-matrix (1.18, receiver-1)	5m 20s
lint-matrix (processor)	40s
unittest-matrix (1.18, processor)	3m 21s
lint-matrix (exporter)	38s
lint-matrix (extension)	40s
unittest-matrix (1.18, exporter)	5m 20s
lint-matrix (internal)	42s
unittest-matrix (1.18, extension)	4m 0s
lint-matrix (other)	40s
unittest-matrix (1.18, internal)	3m 49s
unittest-matrix (1.18, other)	5m 8s
unittest-matrix (1.17, receiver-0)	4m 25s
unittest-matrix (1.17, receiver-1)	5m 19s
unittest-matrix (1.17, processor)	3m 24s
unittest-matrix (1.17, exporter)	5m 20s
unittest-matrix (1.17, extension)	3m 45s
unittest-matrix (1.17, internal)	3m 56s
unittest-matrix (1.17, other)	5m 3s
lint	0s
unittest	0s
cross-compile	0s
build-package	0s
windows-msi	0s
publish-stable	0s
publish-check	0s
publish-dev	0s
	1h 28m 17s

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