burr-0.31.0

What's Changed

• Updates demo to use otel by @skrawcz in #384
• Annotations by @elijahbenizzy in #383
• Bumps version from 0.30.4 to 0.31.0 by @elijahbenizzy in #387

Full Changelog: burr-0.30.4...burr-0.31.0