Update dependency karma to v2.0.5

[renovate[bot]]

This Pull Request updates dependency karma from v2.0.4 to v2.0.5

Release Notes

### [`v2.0.5`](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md#​205httpsgithubcomkarma-runnerkarmacomparev204v205-2018-07-24) [Compare Source](https://github.com/karma-runner/karma/compare/v2.0.4...v2.0.5) ##### Bug Fixes * remove circular reference in Browser ([518cb11](https://github.com/karma-runner/karma/commit/518cb11)), closes [#​3075](`https://github.com/karma-runner/karma/issues/3075`) * **browser:** ensure browser state is EXECUTING when tests start ([#​3074](`https://github.com/karma-runner/karma/issues/3074`)) ([dc7265b](https://github.com/karma-runner/karma/commit/dc7265b)), closes [#​1640](`https://github.com/karma-runner/karma/issues/1640`) * **doc:** Document release steps for admins ([#​3063](`https://github.com/karma-runner/karma/issues/3063`)) ([a701732](https://github.com/karma-runner/karma/commit/a701732)) * **middleware:** Obey the Promise API. ([93ba05a](https://github.com/karma-runner/karma/commit/93ba05a)) * **server:** pass bound port to prevent`EADDRINUSE` issue. ([#​3065](`https://github.com/karma-runner/karma/issues/3065`)) ([850a90b](https://github.com/karma-runner/karma/commit/850a90b)) ##### Features * **preprocessor:** Allow preprocessor to handle binary files ([#​3054](`https://github.com/karma-runner/karma/issues/3054`)) ([7b66e18](https://github.com/karma-runner/karma/commit/7b66e18)) ---

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