Pre-release: Update version to 0.3.0#114

pxaws merged 2 commits intorelease/v0.3.xaws-observability/aws-otel-js-instrumentation:release/v0.3.xfrom

v0.3.0_releaseaws-observability/aws-otel-js-instrumentation:v0.3.0_releaseCopy head branch name to clipboard