chore(deps): update dependency coveralls to v3.1.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
coveralls	3.1.0 -> 3.1.1

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Release Notes

nickmerwin/node-coveralls

### [`v3.1.1`](https://togithub.com/nickmerwin/node-coveralls/releases/3.1.1) [Compare Source](https://togithub.com/nickmerwin/node-coveralls/compare/v3.1.0...3.1.1) - swapped `exec` for `execFile`. Credit: Adar Zandberg from the CxSCA AppSec team at Checkmarx. - updated `devDependencies` - merged Dependabot PRs

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