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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[codecov-io]

Codecov Report

Merging #24 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #24   +/-   ##
=======================================
  Coverage   92.13%   92.13%           
=======================================
  Files          11       11           
  Lines          89       89           
=======================================
  Hits           82       82           
  Misses          7        7           

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[coveralls]

Coverage remained the same at 92.135% when pulling caf72a3 on renovate/coveralls-3.x into 5b6a5c5 on master.