[BUG] npm install shows 3 vulnerabilities in dependencies

[nayanshah]

Steps to Reproduce

Run npm install after cloning the repo

> npm install
npm WARN prepublish-on-install As of npm@5, `prepublish` scripts are deprecated.
npm WARN prepublish-on-install Use `prepare` for build steps and `prepublishOnly` for upload-only.
npm WARN prepublish-on-install See the deprecation note in `npm help scripts` for more information.

> npm-expansions@2.2.4 prepublish F:\Git\npm-expansions
> npm test


> npm-expansions@2.2.4 pretest F:\Git\npm-expansions
> node build.js


> npm-expansions@2.2.4 test F:\Git\npm-expansions
> tap test

total ................................................... 0/0

ok
audited 24 packages in 1.061s
found 3 vulnerabilities (2 low, 1 high)
  run `npm audit fix` to fix them, or `npm audit` for details

Expected Behavior

No vulnerabilities reported

Who

• n/a

References

• n/a

[Explosion-Scratch]

This probably should not go in the npm-expansions repo

[lsTheFur]

This probably should not go in the npm-expansions repo

npm literally reports this when running npm install in the npm-expansions repo. The fix is updating the packages in the npm-expansions repo.

[nopeless]

#3950 Fixes legacy deps