Bump go.opentelemetry.io/collector/model

Bumps [go.opentelemetry.io/collector/model](https://github.com/open-telemetry/opentelemetry-collector) from 0.47.0 to 0.50.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-collector/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-collector/blob/main/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-collector@v0.47.0...v0.50.0)

---
updated-dependencies:
- dependency-name: go.opentelemetry.io/collector/model
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

receiver/kafkametricsreceiver/go.mod

@@ -6,9 +6,9 @@ require (
 	github.com/Shopify/sarama v1.32.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/exporter/kafkaexporter v0.47.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/containertest v0.47.0
-	github.com/stretchr/testify v1.7.0
+	github.com/stretchr/testify v1.7.1
 	go.opentelemetry.io/collector v0.47.0
-	go.opentelemetry.io/collector/model v0.47.0
+	go.opentelemetry.io/collector/model v0.50.0
 	go.uber.org/zap v1.21.0
 )
 
@@ -64,6 +64,7 @@ require (
 	github.com/xdg-go/scram v1.1.1 // indirect
 	github.com/xdg-go/stringprep v1.0.3 // indirect
 	go.opencensus.io v0.23.0 // indirect
+	go.opentelemetry.io/collector/pdata v0.50.0 // indirect
 	go.opentelemetry.io/otel v1.4.1 // indirect
 	go.opentelemetry.io/otel/metric v0.27.0 // indirect
 	go.opentelemetry.io/otel/trace v1.4.1 // indirect
@@ -73,8 +74,8 @@ require (
 	golang.org/x/sys v0.0.0-20220114195835-da31bd327af9 // indirect
 	golang.org/x/text v0.3.7 // indirect
 	google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa // indirect
-	google.golang.org/grpc v1.45.0 // indirect
-	google.golang.org/protobuf v1.27.1 // indirect
+	google.golang.org/grpc v1.46.0 // indirect
+	google.golang.org/protobuf v1.28.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
 )