Bump go.opentelemetry.io/collector/featuregate

Bumps [go.opentelemetry.io/collector/featuregate](https://github.com/open-telemetry/opentelemetry-collector) from 1.0.0-rcv0014 to 1.21.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-collector/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-collector/blob/main/CHANGELOG-API.md)
- [Commits](open-telemetry/opentelemetry-collector@pdata/v1.0.0-rcv0014...pdata/v1.21.0)

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

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

processor/servicegraphprocessor/go.mod

@@ -4,7 +4,7 @@ module github.com/open-telemetry/opentelemetry-collector-contrib/processor/servi
 go 1.19
 
 require (
-	github.com/stretchr/testify v1.8.4
+	github.com/stretchr/testify v1.10.0
 	go.opencensus.io v0.24.0
 	go.opentelemetry.io/collector v0.82.0
 	go.opentelemetry.io/collector/component v0.82.0
@@ -13,7 +13,7 @@ require (
 	go.opentelemetry.io/collector/consumer v0.82.0
 	go.opentelemetry.io/collector/exporter v0.82.0
 	go.opentelemetry.io/collector/exporter/otlpexporter v0.82.0
-	go.opentelemetry.io/collector/featuregate v1.0.0-rcv0014
+	go.opentelemetry.io/collector/featuregate v1.21.0
 	go.opentelemetry.io/collector/pdata v1.0.0-rcv0014
 	go.opentelemetry.io/collector/processor v0.82.0
 	go.opentelemetry.io/collector/semconv v0.82.0
@@ -40,6 +40,7 @@ require (
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.2 // indirect
+	github.com/hashicorp/go-version v1.7.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.16.7 // indirect
@@ -94,7 +95,6 @@ require (
 	go.opentelemetry.io/otel/sdk/metric v0.39.0 // indirect
 	go.opentelemetry.io/otel/trace v1.16.0 // indirect
 	go.opentelemetry.io/proto/otlp v0.19.0 // indirect
-	go.uber.org/goleak v1.2.1 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/net v0.12.0 // indirect
 	golang.org/x/sys v0.10.0 // indirect