build(deps): bump opentelemetry-sdk from 1.2.0 to 1.2.1

Bumps [opentelemetry-sdk](https://github.com/open-telemetry/opentelemetry-ruby) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/open-telemetry/opentelemetry-ruby/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-ruby/blob/main/sdk/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-ruby@opentelemetry-sdk/v1.2.0...opentelemetry-sdk/v1.2.1)

---
updated-dependencies:
- dependency-name: opentelemetry-sdk
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -322,14 +322,14 @@ GEM
       opentelemetry-api (~> 1.0)
       opentelemetry-common (~> 0.19.3)
       opentelemetry-instrumentation-base (~> 0.21.0)
-    opentelemetry-registry (0.2.0)
+    opentelemetry-registry (0.3.0)
       opentelemetry-api (~> 1.1)
-    opentelemetry-sdk (1.2.0)
+    opentelemetry-sdk (1.2.1)
       opentelemetry-api (~> 1.1)
       opentelemetry-common (~> 0.19.3)
       opentelemetry-registry (~> 0.2)
       opentelemetry-semantic_conventions
-    opentelemetry-semantic_conventions (1.8.0)
+    opentelemetry-semantic_conventions (1.10.0)
       opentelemetry-api (~> 1.0)
     parallel (1.23.0)
     parser (3.2.2.3)