Bump io.opentelemetry.instrumentation:opentelemetry-instrumentation-b…

…om-alpha (#1164)

Bumps [io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha](https://github.com/open-telemetry/opentelemetry-java-instrumentation) from 2.8.0-alpha to 2.9.0-alpha.
- [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](https://github.com/open-telemetry/opentelemetry-java-instrumentation/commits)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -18,7 +18,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <automatic.module.name>--module-name-need-to-be-overriden--</automatic.module.name>
         <junit-jupiter.version>5.11.3</junit-jupiter.version>
-        <otel.instrumentation.version>2.8.0-alpha</otel.instrumentation.version>
+        <otel.instrumentation.version>2.9.0-alpha</otel.instrumentation.version>
         <java.version>8</java.version>
         <jacoco.line-coverage>0.70</jacoco.line-coverage>
         <coverage.skip>false</coverage.skip>