Update dependency coveralls to v3.1.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
coveralls	devDependencies	minor	3.0.14 -> 3.1.0

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Release Notes

nickmerwin/node-coveralls

v3.1.0

Compare Source

• Handle service_job_number for parallelism in Travis and CircleCI (#​290) 705c3b5
• Update sinon to v7.5.0. (#​288) eb6dc35

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This is a minor release due to the change in behavior for CircleCI, which now uses the Workflow ID to merge parallel coverage jobs:

    options.service_number = process.env.CIRCLE_WORKFLOW_ID;
    options.service_job_number = process.env.CIRCLE_BUILD_NUM;

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[codecov-io]

Codecov Report

Merging #19 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #19   +/-   ##
=======================================
  Coverage   93.22%   93.22%           
=======================================
  Files          90       90           
  Lines         561      561           
=======================================
  Hits          523      523           
  Misses         38       38           

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[coveralls]

Coverage remained the same at 93.226% when pulling 7b9898b on renovate/coveralls-3.x into 9a9b0e1 on master.