v1.4.2

What's Changed

• Bump opentelemetry_exporter from 1.4.1 to 1.5.0 by @dependabot in #111
• Ensure that keys are strings before we call Span.set_attributes (#114)
• Adds with_span decorator (delegates to trace, so you can use either)
• Ensure attributes set with the helper get prefixed

Full Changelog: v1.4.1...v1.4.2