relax assertions for ICU 72.1

> In many formatting patterns, ASCII spaces are replaced with Unicode spaces
> (e.g., a "thin space").

see https://icu.unicode.org/download/72

Author: xabbuh

Tests/Extension/Core/DataTransformer/DateTimeToLocalizedStringTransformerTest.php

@@ -124,7 +124,7 @@ public function testTransformToDifferentLocale()
 
         $transformer = new DateTimeToLocalizedStringTransformer('UTC', 'UTC');
 
-        $this->assertEquals('Feb 3, 2010, 4:05 AM', $transformer->transform($this->dateTime));
+        $this->assertMatchesRegularExpression('/^Feb 3, 2010, 4:05\s+AM$/u', $transformer->transform($this->dateTime));
     }
 
     public function testTransformEmpty()

Tests/Extension/Core/Type/DateTimeTypeTest.php

@@ -530,7 +530,7 @@ public function testSingleTextWidgetWithCustomNonHtml5Format()
         ]);
         $view = $form->createView();
 
-        $this->assertSame('2/13/19, 7:12:13 PM', $view->vars['value']);
+        $this->assertMatchesRegularExpression('#^2/13/19, 7:12:13\s+PM$#u', $view->vars['value']);
     }
 
     public function testDateTypeChoiceErrorsBubbleUp()