chore: drop support for Node.js 16 and lower

[dhmlau]

BREAKING CHANGE: drop support for Node.js 16 and lower

Checklist

• [x] DCO (Developer Certificate of Origin) signed in all commits
• [x] npm test passes on your machine
• [ ] New tests added or existing tests modified to cover all changes
• [x] Code conforms with the style guide
• [x] Commit messages are following our guidelines

[coveralls]

Pull Request Test Coverage Report for Build 6496544524

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall first build on drop-node16 at 64.554%

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Totals
Change from base Build 6147664746:	64.6%
Covered Lines:	182
Relevant Lines:	258

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💛 - Coveralls