chore(deps-dev): bump opentelemetry-exporter-zipkin

Bumps [opentelemetry-exporter-zipkin](https://github.com/open-telemetry/opentelemetry-python) from 1.14.0 to 1.18.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-python/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-python/blob/main/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-python@v1.14.0...v1.18.0)

---
updated-dependencies:
- dependency-name: opentelemetry-exporter-zipkin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -153,7 +153,7 @@ tracing = [
     "bentoml[tracing-zipkin]",
 ]
 tracing-jaeger = ["opentelemetry-exporter-jaeger==1.14.0"]
-tracing-zipkin = ["opentelemetry-exporter-zipkin==1.14.0"]
+tracing-zipkin = ["opentelemetry-exporter-zipkin==1.18.0"]
 tracing-otlp = ["opentelemetry-exporter-otlp==1.14.0"]
 
 [tool.setuptools_scm]