Bump io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom

Bumps [io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom](https://github.com/open-telemetry/opentelemetry-java-instrumentation) from 2.19.0 to 2.20.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-java-instrumentation@v2.19.0...v2.20.0)

---
updated-dependencies:
- dependency-name: io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom
  dependency-version: 2.20.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

dependencyManagement/build.gradle.kts

@@ -9,7 +9,7 @@ rootProject.extra["versions"] = dependencyVersions
 
 val otelSdkVersion = "1.53.0"
 val otelInstrumentationAlphaVersion = "2.19.0-alpha"
-val otelInstrumentationVersion = "2.19.0"
+val otelInstrumentationVersion = "2.20.0"
 val otelContribVersion = "1.48.0"
 
 rootProject.extra["otelInstrumentationVersion"] = otelInstrumentationVersion