chore(deps): update dependency karma-coverage-istanbul-reporter to v2.0.5

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
karma-coverage-istanbul-reporter	devDependencies	patch	2.0.4 -> 2.0.5	source

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Release Notes

mattlewis92/karma-coverage-istanbul-reporter

### [`v2.0.5`](https://togithub.com/mattlewis92/karma-coverage-istanbul-reporter/blob/master/CHANGELOG.md#​205httpsgithubcommattlewis92karma-coverage-istanbul-reportercomparev204v205-2019-02-17) [Compare Source](https://togithub.com/mattlewis92/karma-coverage-istanbul-reporter/compare/v2.0.4...v2.0.5) ##### Bug Fixes - correctly strip source file prefixes when no webpack.context is defined ([3c48bf8](https://togithub.com/mattlewis92/karma-coverage-istanbul-reporter/commit/3c48bf8)) - don't double-report files with mixed slashes in their names on windows ([38087c2](https://togithub.com/mattlewis92/karma-coverage-istanbul-reporter/commit/38087c2))

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