chore: add sem version to gin-gonic instrumentation (#324)

Author: reggiemcdonald

instrumentation/github.com/gin-gonic/gin/gintrace.go

@@ -23,6 +23,8 @@ import (
 
 	"go.opentelemetry.io/otel/codes"
 
+	otelcontrib "go.opentelemetry.io/contrib"
+
 	otelglobal "go.opentelemetry.io/otel/api/global"
 	otelpropagation "go.opentelemetry.io/otel/api/propagation"
 	oteltrace "go.opentelemetry.io/otel/api/trace"
@@ -46,7 +48,10 @@ func Middleware(service string, opts ...Option) gin.HandlerFunc {
 	if cfg.TracerProvider == nil {
 		cfg.TracerProvider = otelglobal.TraceProvider()
 	}
-	tracer := cfg.TracerProvider.Tracer(tracerName)
+	tracer := cfg.TracerProvider.Tracer(
+		tracerName,
+		oteltrace.WithInstrumentationVersion(otelcontrib.SemVersion()),
+	)
 	if cfg.Propagators == nil {
 		cfg.Propagators = otelglobal.Propagators()
 	}
@@ -98,7 +103,10 @@ func HTML(c *gin.Context, code int, name string, obj interface{}) {
 		tracer, ok = tracerInterface.(oteltrace.Tracer)
 	}
 	if !ok {
-		tracer = otelglobal.Tracer(tracerName)
+		tracer = otelglobal.TraceProvider().Tracer(
+			tracerName,
+			oteltrace.WithInstrumentationVersion(otelcontrib.SemVersion()),
+		)
 	}
 	savedContext := c.Request.Context()
 	defer func() {