chore: upgrade to Node v20.11, use new module features

[adidahiya]

Changes proposed in this pull request:

• Upgrade to Node v20.11
• Use new module system features
  • import.meta.dirname obviates the need for path.dirname(url.fileURLToPath(import.meta.url))
  • Import attributes are the new "Import assertions"
  • createRequire(import.meta.url).resolve(...) is now fileURLToPath(import.meta.resolve(...)
    • this is no less succinct, but possibly more idiomatic? reasonable devs may agree to disagree... 🤷🏽

@blueprintjs/node-build-scripts

• ⚠️ break: update Node.js engine requirement to >=20.11

@blueprintjs/webpack-build-scripts

• ⚠️ break: update Node.js engine requirement to >=20.11

Reviewers should focus on:

No tooling regressions

Screenshot

N/A

[adidahiya]

adjust optional dependency

Build artifact links for this commit: documentation | landing | table | demo

This is an automated comment from the deploy-preview CircleCI job.