Update dependency coveralls to v3.0.9

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
coveralls	devDependencies	patch	3.0.8 -> 3.0.9

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Release Notes

nickmerwin/node-coveralls

v3.0.9

Compare Source

• removed Istanbul, mocha dependencies
• reverted cobertura-parse support (package dependency archived)
• removed snyk (automated security updates from GitHub via Dependabot enabled)
• improved Windows support

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[coveralls]

Coverage remained the same at 100.0% when pulling a484bc0 on renovate/coveralls-3.x into 1424dc5 on master.

[codecov-io]

Codecov Report

Merging #13 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #13   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           6      6           
  Lines          44     44           
=====================================
  Hits           44     44

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