chore(release): 4.2.0 [skip ci]
chore(release): 4.2.0 [skip ci]

# [4.2.0](https://github.com/karma-runner/karma-sauce-launcher/compare/v4.1.6...v4.2.0) (2020-10-29)

### Bug Fixes

* fix indentation error ([b5ba374](https://github.com/karma-runner/karma-sauce-launcher/commit/b5ba374dde0a9de16608b98fa7b1d3de3f4a355b))

### Features

* add heartbeat to keep session alive every 60 seconds ([c17711a](https://github.com/karma-runner/karma-sauce-launcher/commit/c17711a444035c46e217030f0ca1b49b3df00493))

karma-runner/karma-sauce-launcher,karma-runner/karma-sauce-launcher