Consider printing slow test report after `phpunit/phpunit` has printed its own output

[localheinz]

Right now the report is printed before phpunit/phpunit has printed its own output - which feels like a violation to me.

Before

See https://github.com/sebastianbergmann/phpunit/blob/10.0.0/src/TextUI/TestRunner.php#L65.

PHPUnit 10.5.63 by Sebastian Bergmann and contributors.

Runtime:       PHP 8.1.34
Configuration: /app/work/test/Phar/PHPUnit10/phpunit.xml
Extension:     ergebnis/phpunit-slow-test-detector 2.23.0
Random Seed:   1771838601

.....                                                               5 / 5 (100%)

Detected 4 tests where the duration exceeded the global maximum duration (0.050).

# Duration Test
----------------------------------------------------------------------------------------------------------------------------------
1    0.156 Ergebnis\PHPUnit\SlowTestDetector\Test\Phar\PHPUnit10\SleeperTest::testSleeperSleepsOneHundredAndFiftyMilliseconds
2    0.130 Ergebnis\PHPUnit\SlowTestDetector\Test\Phar\PHPUnit10\SleeperTest::testSleeperSleepsOneHundredAndTwentyFiveMilliseconds
3    0.104 Ergebnis\PHPUnit\SlowTestDetector\Test\Phar\PHPUnit10\SleeperTest::testSleeperSleepsOneHundredMilliseconds
4    0.077 Ergebnis\PHPUnit\SlowTestDetector\Test\Phar\PHPUnit10\SleeperTest::testSleeperSleepsSeventyFiveMilliseconds
----------------------------------------------------------------------------------------------------------------------------------
     0.000
      └─── seconds

Time: 00:00.473, Memory: 8.00 MB

OK (5 tests, 5 assertions)

After

See https://github.com/sebastianbergmann/phpunit/blob/10.0.0/src/TextUI/Application.php#L175.

PHPUnit 10.5.63 by Sebastian Bergmann and contributors.

Runtime:       PHP 8.1.34
Configuration: /app/work/test/Phar/PHPUnit10/phpunit.xml
Extension:     ergebnis/phpunit-slow-test-detector 2.23.0
Random Seed:   1771838601

.....                                                               5 / 5 (100%)

Time: 00:00.473, Memory: 8.00 MB

OK (5 tests, 5 assertions)

Detected 4 tests where the duration exceeded the global maximum duration (0.050).

# Duration Test
----------------------------------------------------------------------------------------------------------------------------------
1    0.156 Ergebnis\PHPUnit\SlowTestDetector\Test\Phar\PHPUnit10\SleeperTest::testSleeperSleepsOneHundredAndFiftyMilliseconds
2    0.130 Ergebnis\PHPUnit\SlowTestDetector\Test\Phar\PHPUnit10\SleeperTest::testSleeperSleepsOneHundredAndTwentyFiveMilliseconds
3    0.104 Ergebnis\PHPUnit\SlowTestDetector\Test\Phar\PHPUnit10\SleeperTest::testSleeperSleepsOneHundredMilliseconds
4    0.077 Ergebnis\PHPUnit\SlowTestDetector\Test\Phar\PHPUnit10\SleeperTest::testSleeperSleepsSeventyFiveMilliseconds
----------------------------------------------------------------------------------------------------------------------------------
     0.000
      └─── seconds