chore(deps): update dependency karma to ~5.2.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
karma (source)	devDependencies	patch	~5.2.2 -> ~5.2.3

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Release Notes

karma-runner/karma

### [`v5.2.3`](https://togithub.com/karma-runner/karma/blob/master/CHANGELOG.md#​523-httpsgithubcomkarma-runnerkarmacomparev522v523-2020-09-25) [Compare Source](https://togithub.com/karma-runner/karma/compare/v5.2.2...v5.2.3) ##### Bug Fixes - update us-parser-js dependency ([#​3564](https://togithub.com/karma-runner/karma/issues/3564)) ([500ed25](https://togithub.com/karma-runner/karma/commit/500ed25d7e523efe7e7cff2ec70830be7e6e797a))

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