Nunjucks v4.0.0-alpha.2

• Fixes use of async shortcodes in macros #10 thank you @ogonkov!
• Breaking: removes slim bundle from browser/
• Remove asap dependency by @tmcw #3
• devDeps: Moves from mocha/phantomjs to Vitest and Vitest Browser Mode #7
• devDeps: Removes Babel #4
• Use Array.isArray internally.
• 🎉 Production library dependencies decreased from 2 to 0
• 🎉 Installable package size decreased from 828 kB to 262 kB
• 🎉 npm audits (for devDeps) decreased from 41 “vulnerabilities” to 0

Milestone: https://github.com/11ty/nunjucks/milestone/1?closed=1
Full Changelog: v4.0.0-alpha.1...v4.0.0-alpha.2
npmx release: - https://npmx.dev/package-timeline/@11ty/nunjucks/v/4.0.0-alpha.2

# npm install: v4.0.0-alpha.1
added 552 packages, removed 186 packages, changed 108 packages, and audited 891 packages in 9s
41 vulnerabilities (9 low, 15 moderate, 14 high, 3 critical)

# npm install v4.0.0-alpha.2
added 192 packages, removed 552 packages, changed 121 packages, and audited 531 packages in 8s
found 0 vulnerabilities