npm audit fixes needed in pub_sub javascript quickstarts

[joebowbeer]

During install (npm i) of the pub_sub javascript dependencies, 5 npm audit issues are reported.

https://github.com/dapr/quickstarts/tree/master/pub_sub/javascript/http
https://github.com/dapr/quickstarts/tree/master/pub_sub/javascript/sdk

Expected Behavior

found 0 vulnerabilities

Actual Behavior

Vulnerabilities reported

Steps to Reproduce the Problem

Follow install instructions in http and sdk README's

By the way, given the rate at which npm vulnerabilities are reported, there are probably vulnerabilities in every other javascript sample. Can Dependabot help?