fix: request and coveralls had vulnerabilities

Author: joeyguerra

README.md

@@ -2,10 +2,6 @@ Hubot Help Plugin
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 ![Build Status](https://github.com/hubotio/hubot-help/actions/workflows/release.yml/badge.svg)
-[![Coverage Status](https://coveralls.io/repos/github/hubotio/hubot-help/badge.svg?branch=main)](https://coveralls.io/github/hubotio/hubot-help?branch=main)
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 A hubot script to show available hubot commands