[Bug] Mocha colors are not visible in v7

[andykais]

• I'd be willing to submit the fix

posting as a follow up to #53

Describe the bug
colors for mocha tests are not visible from mochapack.

To Reproduce
running any test under the current verison of mochapack shows this behavior

npx mochapack '{test,src}/**/*.test.ts' --watch --clear-terminal

Screenshots
this screenshot shows that 1. errors are not highlighted and and 2. mocha test checkmarks are not highlighted.

You can see that webpack specific output (like the compile time) and the final "Tests completed with 1 failure(s)" are highlighted, so colors are working properly in the terminal

Environment if relevant (please complete the following information):

• OS: Linux
• Node version v13.8.0
• Mochapack version v1.1.15
• Webpack version 4.43.0
• Mocha version: v7.1.2

Additional context

Add any other context about the problem here.

running mocha on a simple js test without mochapack shows colors being properly displayed, so I am confident this is an issue with how mochapack displays colors