chore(deps): bump google.golang.org/grpc in /metrics

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.66.0 to 1.66.1.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.66.0...v1.66.1)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

metrics/go.mod

@@ -10,7 +10,7 @@ require (
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.29.0
 	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.29.0
 	go.opentelemetry.io/otel/sdk v1.29.0
-	google.golang.org/grpc v1.66.0
+	google.golang.org/grpc v1.66.1
 )
 
 require (

metrics/go.sum

@@ -63,8 +63,8 @@ google.golang.org/genproto/googleapis/api v0.0.0-20240822170219-fc7c04adadcd h1:
 google.golang.org/genproto/googleapis/api v0.0.0-20240822170219-fc7c04adadcd/go.mod h1:fO8wJzT2zbQbAjbIoos1285VfEIYKDDY+Dt+WpTkh6g=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20240822170219-fc7c04adadcd h1:6TEm2ZxXoQmFWFlt1vNxvVOa1Q0dXFQD1m/rYjXmS0E=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20240822170219-fc7c04adadcd/go.mod h1:UqMtugtsSgubUsoxbuAoiCXvqvErP7Gf0so0mK9tHxU=
-google.golang.org/grpc v1.66.0 h1:DibZuoBznOxbDQxRINckZcUvnCEvrW9pcWIE2yF9r1c=
-google.golang.org/grpc v1.66.0/go.mod h1:s3/l6xSSCURdVfAnL+TqCNMyTDAGN6+lZeVxnZR128Y=
+google.golang.org/grpc v1.66.1 h1:hO5qAXR19+/Z44hmvIM4dQFMSYX9XcWsByfoxutBpAM=
+google.golang.org/grpc v1.66.1/go.mod h1:s3/l6xSSCURdVfAnL+TqCNMyTDAGN6+lZeVxnZR128Y=
 google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg=
 google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=