Update dependency karma-coverage to v2.2.1

This MR contains the following updates:

Package	Type	Update	Change
karma-coverage	devDependencies	patch	2.2.0 -> 2.2.1

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Release Notes

karma-runner/karma-coverage (karma-coverage)

v2.2.1

Compare Source

Bug Fixes

• exit code when reporter file is not provided (1388186)

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