chore(deps): update dependency karma to v4.1.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
karma	devDependencies	minor	4.0.1 -> 4.1.0	homepage, source

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Release Notes

karma-runner/karma

v4.1.0

Compare Source

Bug Fixes

• client: Enable loading different file types when running in parent mode without iframe (#​3289) (7968db6)
• client: Only create the funky object if message is not a string (#​3298) (ce6825f), closes #​3296
• launcher: Log state transitions in debug (#​3294) (6556ab4), closes #​3290
• middleware: log invalid filetype (#​3292) (7eb48c5), closes #​3291

4.0.1 (2019-02-28)

Bug Fixes

• browser: allow updating total specs count (#​3264) (d5df723)
• remove vulnerable dependency combine-lists (#​3273) (c43f584), closes #​3265
• remove vulnerable dependency expand-braces (#​3270) (4ec4f6f), closes #​3268 #​3269
• filelist: correct logger name. (#​3262) (375bb5e)
• launcher: Debug Child Processes exit signal (#​3259) (c277a6b)

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