fix(deps): update module github.com/grpc-ecosystem/go-grpc-middleware to v2

| datasource | package                                      | from   | to     |
| ---------- | -------------------------------------------- | ------ | ------ |
| go         | github.com/grpc-ecosystem/go-grpc-middleware | v1.4.0 | v2.3.3 |


Signed-off-by: renovate-sh-app[bot] <219655108+renovate-sh-app[bot]@users.noreply.github.com>

Author: renovate-sh-app[bot]

go.mod

@@ -23,7 +23,7 @@ require (
 	github.com/grafana/sobek v0.0.0-20251030131753-d05c9166857d
 	github.com/grafana/xk6-dashboard v0.7.13
 	github.com/grafana/xk6-redis v0.3.4
-	github.com/grpc-ecosystem/go-grpc-middleware v1.4.0
+	github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.3
 	github.com/influxdata/influxdb1-client v0.0.0-20190402204710-8ff2fc3824fc
 	github.com/jhump/protoreflect v1.17.0
 	github.com/klauspost/compress v1.18.0