Tracing: supply Grafana build version (#69733)

* tracing: supply Grafana build version

Not etcd client version.

* go mod tidy

go.mod

@@ -246,7 +246,6 @@ require (
 	github.com/jmoiron/sqlx v1.3.5
 	github.com/matryer/is v1.4.0
 	github.com/urfave/cli v1.22.12
-	go.etcd.io/etcd/api/v3 v3.5.5
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.40.0
 	go.opentelemetry.io/contrib/propagators/jaeger v1.15.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.14.0
@@ -388,7 +387,6 @@ require (
 	github.com/blugelabs/ice v1.0.0 // indirect
 	github.com/caio/go-tdigest v3.1.0+incompatible // indirect
 	github.com/chromedp/cdproto v0.0.0-20220208224320-6efb837e6bc2 // indirect
-	github.com/coreos/go-semver v0.3.0 // indirect
 	github.com/dgryski/go-metro v0.0.0-20211217172704-adc40b04c140 // indirect
 	github.com/docker/docker v23.0.4+incompatible
 	github.com/elazarl/goproxy v0.0.0-20220115173737-adb46da277ac // indirect