Update dependency karma to ~4.4.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
karma (source)	devDependencies	minor	~4.3.0 -> ~4.4.0

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Release Notes

karma-runner/karma

v4.4.0

Compare Source

Bug Fixes

• runner: remove explicit error on all tests failed (#​3369) (f8005c6), closes #​3367

Features

• client: Add trusted types support (#​3360) (019bfd4)
• Preprocessor can return Promise (#​3376) (3ffcd83)
• config: add failOnSkippedTests option. (#​3374) (4ed3af0)
• config: clientDisplayNone sets client elements display none. (#​3348) (6235e68)
• deps: Remove core-js dependency. (#​3379) (0d70809)

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