Update dependency coveralls to v3.0.6

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
coveralls	devDependencies	patch	3.0.5 -> 3.0.6

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Release Notes

nickmerwin/node-coveralls

### [`v3.0.6`](https://togithub.com/nickmerwin/node-coveralls/compare/55fc4d882b030ff18d64693e0db6b51cad2b527b...1e096913d5de887722c8ce8619b9f76085632e70) [Compare Source](https://togithub.com/nickmerwin/node-coveralls/compare/55fc4d882b030ff18d64693e0db6b51cad2b527b...1e096913d5de887722c8ce8619b9f76085632e70)

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