Update otel README.md

Author: dependabot[bot]

internal/pkg/otel/README.md

@@ -79,7 +79,7 @@ This section provides a summary of components included in the Elastic Distributi
 
 | Component | Version |
 |---|---|
-| [signaltometricsconnector](https://github.com/elastic/opentelemetry-collector-components/blob/connector/signaltometricsconnector/v0.2.1/connector/signaltometricsconnector/README.md) | v0.2.1 |
+| [signaltometricsconnector](https://github.com/elastic/opentelemetry-collector-components/blob/connector/signaltometricsconnector/v0.3.0/connector/signaltometricsconnector/README.md) | v0.3.0 |
 | [spanmetricsconnector](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/connector/spanmetricsconnector/v0.112.0/connector/spanmetricsconnector/README.md) | v0.112.0 |
 ## Persistence in OpenTelemetry Collector