chore(deps): bump github.com/twmb/franz-go/plugin/kotel

Bumps [github.com/twmb/franz-go/plugin/kotel](https://github.com/twmb/franz-go) from 1.5.0 to 1.6.0.
- [Changelog](https://github.com/twmb/franz-go/blob/master/CHANGELOG.md)
- [Commits](twmb/franz-go@v1.5.0...v1.6.0)

---
updated-dependencies:
- dependency-name: github.com/twmb/franz-go/plugin/kotel
  dependency-version: 1.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

go.mod

@@ -18,15 +18,11 @@ require (
 	github.com/spf13/cobra v1.9.1
 	github.com/tidwall/pretty v1.2.1
 	github.com/twmb/franz-go v1.18.1
-	github.com/twmb/franz-go/plugin/kotel v1.5.0
+	github.com/twmb/franz-go/plugin/kotel v1.6.0
 	go.opentelemetry.io/otel v1.35.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.35.0
-	go.opentelemetry.io/otel/exporters/prometheus v0.57.0
-	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.35.0
 	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.35.0
-	go.opentelemetry.io/otel/metric v1.35.0
 	go.opentelemetry.io/otel/sdk v1.35.0
-	go.opentelemetry.io/otel/sdk/metric v1.35.0
 	go.opentelemetry.io/otel/trace v1.35.0
 	go.uber.org/fx v1.23.0
 	go.uber.org/zap v1.27.0
@@ -207,6 +203,8 @@ require (
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.49.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.54.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.35.0 // indirect
+	go.opentelemetry.io/otel/metric v1.35.0 // indirect
+	go.opentelemetry.io/otel/sdk/metric v1.35.0 // indirect
 	go.opentelemetry.io/proto/otlp v1.5.0 // indirect
 	go.uber.org/atomic v1.11.0 // indirect
 	go.uber.org/dig v1.18.1 // indirect