Upgrade Prometheus to fix round function (cortexproject#6304)

diff --git a/vendor/github.com/prometheus/prometheus/promql/functions.go b/vendor/github.com/prometheus/prometheus/promql/functions.go
index cc5f19d..a509f78 100644
--- a/vendor/github.com/prometheus/prometheus/promql/functions.go
+++ b/vendor/github.com/prometheus/prometheus/promql/functions.go
@@ -534,6 +534,9 @@ func funcRound(vals []parser.Value, args parser.Expressions, enh *EvalNodeHelper

 	for _, el := range vec {
 		f := math.Floor(el.F*toNearestInverse+0.5) / toNearestInverse
+		if !enh.enableDelayedNameRemoval {
+			el.Metric = el.Metric.DropMetricName()
+		}
 		enh.Out = append(enh.Out, Sample{
 			Metric:   el.Metric,
 			F:        f,

Author: yeya24