Bump io.opentelemetry:opentelemetry-bom-alpha

Bumps [io.opentelemetry:opentelemetry-bom-alpha](https://github.com/open-telemetry/opentelemetry-java) from 1.42.1-alpha to 1.43.0-alpha.
- [Release notes](https://github.com/open-telemetry/opentelemetry-java/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-java/blob/main/CHANGELOG.md)
- [Commits](https://github.com/open-telemetry/opentelemetry-java/commits)

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

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

airbase/pom.xml

@@ -226,7 +226,7 @@
         <dep.opentelemetry-semconv.version>1.27.0-alpha</dep.opentelemetry-semconv.version>
         <dep.opentelemetry-semconv-incubating.version>1.27.0-alpha</dep.opentelemetry-semconv-incubating.version>
         <dep.opentelemetry.version>1.43.0</dep.opentelemetry.version>
-        <dep.opentelemetry-alpha.version>1.42.1-alpha</dep.opentelemetry-alpha.version>
+        <dep.opentelemetry-alpha.version>1.43.0-alpha</dep.opentelemetry-alpha.version>
         <dep.slf4j.version>2.0.16</dep.slf4j.version>
         <dep.slice.version>2.3</dep.slice.version>
         <dep.spotbugs-annotations.version>4.8.6</dep.spotbugs-annotations.version>