v1.0.0-beta.15

✨ Enhancements

• 🏷 Use dom lib when referencing Puppeteer types (d95d557) @wwilsman
• ✨ Add --parallel exec flag (#51) @wwilsman
• ✨ Detect Heroku PR number (#50) @wwilsman

🐛 Bug Fixes

• 🐛 Wait for servers to close (1a27b97) @wwilsman
• 🐛 Wait for healthcheck to fail for exec:stop (d756fde) @wwilsman

🏗 Maintenance

• ⬆️ Bump eslint-plugin-import from 2.22.0 to 2.22.1 (#48) @dependabot
• ⬆️ Bump karma from 5.2.2 to 5.2.3 (#49) @dependabot
• ⬆️ Bump eslint from 7.9.0 to 7.10.0 (#47) @dependabot