Bump google.golang.org/grpc from 1.45.0 to 1.58.1 in /examples/demo/server #1424

Job	Run time
setup-environment	16m 59s
check-collector-module-version	7s
correctness-metrics	2m 45s
checks	20s
correctness-traces	3m 37s
unittest (1.18)	7m 15s
integration-tests	13m 2s
unittest (1.17)	6m 51s
lint	24s
build-examples	5m 22s
cross-compile	0s
windows-msi	0s
build-package	0s
publish-stable	0s
publish-check	0s
publish-dev	0s
	56m 42s

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