Bump opentelemetry-instrumentation-rdkafka from 0.4.2 to 0.4.3

Bumps [opentelemetry-instrumentation-rdkafka](https://github.com/open-telemetry/opentelemetry-ruby-contrib) from 0.4.2 to 0.4.3.
- [Release notes](https://github.com/open-telemetry/opentelemetry-ruby-contrib/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-ruby-contrib/blob/main/instrumentation/rdkafka/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-ruby-contrib@opentelemetry-instrumentation-rdkafka/v0.4.2...opentelemetry-instrumentation-rdkafka/v0.4.3)

---
updated-dependencies:
- dependency-name: opentelemetry-instrumentation-rdkafka
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -348,7 +348,7 @@ GEM
     opentelemetry-instrumentation-rake (0.2.1)
       opentelemetry-api (~> 1.0)
       opentelemetry-instrumentation-base (~> 0.22.1)
-    opentelemetry-instrumentation-rdkafka (0.4.2)
+    opentelemetry-instrumentation-rdkafka (0.4.3)
       opentelemetry-api (~> 1.0)
       opentelemetry-common (~> 0.20.0)
       opentelemetry-instrumentation-base (~> 0.22.1)