Release v0.15.0

What's Changed

• chore(deps-dev): bump ws from 7.5.9 to 7.5.10 in /node in the npm-security-updates group by @dependabot in #128
• chore: update crates by @JasonShin in #146
• chore: clippy fix by @JasonShin in #147
• format: update to use tab spaces = 2 by @JasonShin in #157
• Better error messages by @JasonShin in #156

Full Changelog: v0.14.0...v0.15.0