test: Webpack integration tests

[timfish]

This PR follows #899 and the previous PRs by adding webpack tests

[github-actions]

Semver Impact of This PR

🟢 Patch (bug fixes)

📋 Changelog Preview

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New Features ✨

• Use crypto.randomUUID rather than uuid by timfish in #892

Internal Changes 🔧

• Webpack integration tests by timfish in #904

• Isolate integration test package installs by timfish in #902
• Pin GitHub Actions to full-length commit SHAs by joshuarli in #900
• Rollup integration tests by timfish in #897
• New integration tests by timfish in #896
• Remove lerna by timfish in #895
• Migrate to Vitest by timfish in #894

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