Bump opentelemetry-exporter-otlp from 0.29.0 to 0.29.1

Bumps [opentelemetry-exporter-otlp](https://github.com/open-telemetry/opentelemetry-ruby) from 0.29.0 to 0.29.1.
- [Release notes](https://github.com/open-telemetry/opentelemetry-ruby/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-ruby/blob/main/exporter/otlp/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-ruby@opentelemetry-exporter-otlp/v0.29.0...opentelemetry-exporter-otlp/v0.29.1)

---
updated-dependencies:
- dependency-name: opentelemetry-exporter-otlp
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -192,7 +192,7 @@ GEM
     opentelemetry-api (1.4.0)
     opentelemetry-common (0.21.0)
       opentelemetry-api (~> 1.0)
-    opentelemetry-exporter-otlp (0.29.0)
+    opentelemetry-exporter-otlp (0.29.1)
       google-protobuf (>= 3.18)
       googleapis-common-protos-types (~> 1.3)
       opentelemetry-api (~> 1.1)