Running coverage tests litters output with debug messages

[robcaldecott]

Describe the bug

When running tests with --coverage the output is littered with debug messages:

Debugger listening on ws://127.0.0.1:64213/bb456c21-2c1a-4576-b202-9a787e1731f6
For help, see: https://nodejs.org/en/docs/inspector

This is particularly obvious when CI=true, for example:

Debugger listening on ws://127.0.0.1:64213/bb456c21-2c1a-4576-b202-9a787e1731f6
For help, see: https://nodejs.org/en/docs/inspector
Debugger listening on ws://127.0.0.1:64214/6f2e4b07-6a7e-4c46-837e-0bfb9a96eae3
For help, see: https://nodejs.org/en/docs/inspector
 √ src/FilterProvider/FilterProvider.test.tsx > renders
 √ src/FilterProvider/FilterProvider.test.tsx > uses the correct initial values
 √ src/FilterProvider/FilterProvider.test.tsx > updates the filter
 √ src/FilterProvider/FilterProvider.test.tsx > throws an error when rendered outside of a FilterProvider
Debugger listening on ws://127.0.0.1:64215/18490320-b94e-4575-a340-d16569b3b23f
For help, see: https://nodejs.org/en/docs/inspector
Debugger listening on ws://127.0.0.1:64216/acce2902-5823-47cf-b308-010ba23ff1b3
For help, see: https://nodejs.org/en/docs/inspector
 √ src/Fallback/Fallback.test.tsx > renders
 √ src/Logo/Logo.test.tsx > renders
Debugger listening on ws://127.0.0.1:64217/eca3560b-c362-4475-86f8-f738714f7968
For help, see: https://nodejs.org/en/docs/inspector
 √ src/ErrorMessage/ErrorMessage.test.tsx > renders without an action
 √ src/ErrorMessage/ErrorMessage.test.tsx > renders with an action
 √ src/Details/AlertError.test.tsx > renders
Debugger listening on ws://127.0.0.1:64218/8750caac-56a3-4de7-8a36-8c4a7212842f
For help, see: https://nodejs.org/en/docs/inspector
Debugger listening on ws://127.0.0.1:64219/1e991790-5826-41ac-bf95-79c3d9c95671
For help, see: https://nodejs.org/en/docs/inspector
Debugger listening on ws://127.0.0.1:64220/ddc4727e-9e81-479f-bf07-c1525e62ee4c
For help, see: https://nodejs.org/en/docs/inspector
 √ src/AppHeader/AppHeader.test.tsx > renders
Debugger listening on ws://127.0.0.1:64225/71f89a98-2535-41f7-b0bd-27f5c0eea2b4
For help, see: https://nodejs.org/en/docs/inspector

<snip>

Reproduction

Clone this project:

https://github.com/robcaldecott/vite-kitchen-sink

npm install
CI=true npx vitest run --coverage

I think this was introduced via #584

System Info

System:
    OS: macOS 10.15.7
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 984.49 MB / 16.00 GB
    Shell: 5.7.1 - /bin/zsh
  Binaries:
    Node: 16.13.2 - ~/.nvm/versions/node/v16.13.2/bin/node
    Yarn: 1.22.17 - ~/.nvm/versions/node/v14.17.0/bin/yarn
    npm: 8.1.2 - ~/.nvm/versions/node/v16.13.2/bin/npm
  Browsers:
    Chrome: 97.0.4692.99
    Firefox: 95.0.2
    Safari: 14.1.2
  npmPackages:
    @vitejs/plugin-react: ^1.1.3 => 1.1.4 
    vite: ^2.7.13 => 2.7.13 
    vitest: ^0.2.0 => 0.2.1

Used Package Manager

npm

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