Jobs fail without coverage specification for Xdebug

[SimonFrings]

We are currently switching to github actions to check our test suite.
Therefore we're using the same structure in every ci.yml, for example:

name: CI

on:
 push:
 pull_request:

jobs:
 PHPUnit:
   runs-on: ubuntu-20.04
   strategy:
     matrix:
       php:
         - 7.4
         - 7.3
         - 7.2
         - 7.1
         - 7.0
   steps:
     - uses: actions/checkout@v2
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
       with:
         php-version: ${{ matrix.php }}
     - run: composer install
     - run: vendor/bin/phpunit --coverage-text
       if: ${{ matrix.php >= 7.3 }}
     - run: vendor/bin/phpunit --coverage-text -c phpunit.xml.legacy
       if: ${{ matrix.php < 7.3 }}

As today we are facing failing jobs in all projects using the file above that were fine a day ago. (we didn't change anything)
Message:

Run vendor/bin/phpunit --coverage-text
PHPUnit 7.5.20 by Sebastian Bergmann and contributors.

Code coverage needs to be enabled in php.ini by setting 'xdebug.mode' to 'coverage'
Error: Process completed with exit code 2.

This problem occurs in different PHP versions.
If you take a look at my jobs you can see that PHP 7.1 is green with PHUnit 7.5.20 and PHP 7.3 fails with the same PHPUnit version.

Adding coverage: xdebug to our ci.yml fixes the problem.
But it cant be the solution going through every project adding this line to every ci.yml, right?

[shivammathur]

@SimonFrings Working on a fix

[shivammathur]

@SimonFrings Fixed in d74064b
Test workflow: https://github.com/shivammathur/test-setup-php/actions/runs/430992136/workflow