Consolidate two test methods in NumberFieldTest

Before:

../vendor/bin/phpunit modules/field/tests/src/Functional/Number/NumberFieldTest.php 
PHPUnit 10.5.26 by Sebastian Bergmann and contributors.

Runtime:       PHP 8.3.8
Configuration: /var/www/html/core/phpunit.xml

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

Time: 00:28.764, Memory: 4.00 MB

After:

../vendor/bin/phpunit modules/field/tests/src/Functional/Number/NumberFieldTest.php 
PHPUnit 10.5.26 by Sebastian Bergmann and contributors.

Runtime:       PHP 8.3.8
Configuration: /var/www/html/core/phpunit.xml

....                                                                4 / 4 (100%)

Time: 00:24.821, Memory: 4.00 MB

OK (4 tests, 124 assertions)

Only saves about 5 seconds, but seeing if we still need group #slow to stop it overhanging other tests now.

Test shows up in the middle of the run on https://git.drupalcode.org/project/drupal/-/jobs/2167447 so enough to remove group #slow for me.

Seems straightforward and no coverage loss.

Committed and pushed 63bc78c2d4 to 11.x and ee32e930be to 11.0.x and a8bb272ff9 to 10.4.x and 9320092df7 to 10.3.x. Thanks!

Automatically closed - issue fixed for 2 weeks with no activity.