Bump opentelemetry-instrumentation-bunny from 0.21.1 to 0.21.2

Bumps [opentelemetry-instrumentation-bunny](https://github.com/open-telemetry/opentelemetry-ruby) from 0.21.1 to 0.21.2.
- [Release notes](https://github.com/open-telemetry/opentelemetry-ruby/releases)
- [Commits](open-telemetry/opentelemetry-ruby@opentelemetry-exporter-otlp/v0.21.1...opentelemetry-exporter-otlp/v0.21.2)

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

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

Gemfile.lock

@@ -257,7 +257,7 @@ GEM
     opentelemetry-instrumentation-base (0.22.3)
       opentelemetry-api (~> 1.0)
       opentelemetry-registry (~> 0.1)
-    opentelemetry-instrumentation-bunny (0.21.1)
+    opentelemetry-instrumentation-bunny (0.21.2)
       opentelemetry-api (~> 1.0)
       opentelemetry-instrumentation-base (~> 0.22.1)
     opentelemetry-instrumentation-concurrent_ruby (0.21.2)