fix(deps): replace taffydb with @jsdoc/salty

[hegemonic]

The taffydb package has issues. It's unclear what license it uses, and it has an alleged "security vulnerability" that's completely bogus but nonetheless causes npm audit to squawk. See https://github.com/jsdoc/jsdoc/blob/main/packages/jsdoc-salty/README.md for details about both issues.

This PR replaces taffydb with @jsdoc/salty, a drop-in replacement for taffydb that's licensed under the Apache License 2.0. It has no known security issues, bogus or otherwise.

To test this PR, I generated docs for JSDoc 4.x using this template:

git clone https://github.com/jsdoc/jsdoc
cd jsdoc
git checkout releases/4.0
npm install
node jsdoc.js jsdoc.js lib/jsdoc/* -t ../jsdoc-fresh

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