Bump go.opentelemetry.io/contrib in /instrumentation/runtime

Bumps [go.opentelemetry.io/contrib](https://github.com/open-telemetry/opentelemetry-go-contrib) from 0.15.1 to 0.18.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-go-contrib/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-go-contrib/blob/main/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-go-contrib@v0.15.1...v0.18.0)

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

instrumentation/runtime/go.mod

@@ -6,6 +6,6 @@ replace go.opentelemetry.io/contrib => ../..
 
 require (
 	github.com/stretchr/testify v1.6.1
-	go.opentelemetry.io/contrib v0.15.1
+	go.opentelemetry.io/contrib v0.18.0
 	go.opentelemetry.io/otel v0.15.0
 )