Merge branch '5.4' into 6.2

* 5.4:
  [Translation][Mailer] Convert `$this` calls to static ones in data providers
  [BC Break] Make data providers for abstract test cases static
  use TestCase suffix for abstract tests in Tests directories
  Fix Request locale property doc types
  Bump absolute lowest dep to 4.4

Tests/Constraints/EmailValidatorTest.php

@@ -95,7 +95,7 @@ public function testValidInLooseModeEmails($email)
         $this->assertNoViolation();
     }
 
-    public function getEmailsOnlyValidInLooseMode()
+    public static function getEmailsOnlyValidInLooseMode()
     {
         return [
             ['[email protected]'],
@@ -137,7 +137,7 @@ public function testValidNormalizedEmailsInLooseMode($email)
         $this->assertNoViolation();
     }
 
-    public function getEmailsWithWhitespacesOnlyValidInLooseMode()
+    public static function getEmailsWithWhitespacesOnlyValidInLooseMode()
     {
         return [
             ["\x09\x09[email protected]\x09\x09"],
@@ -252,7 +252,7 @@ public function testInvalidAllowNoTldEmails($email)
             ->assertRaised();
     }
 
-    public function getInvalidAllowNoTldEmails()
+    public static function getInvalidAllowNoTldEmails()
     {
         return [
             ['example bar'],

Tests/Constraints/FileValidatorTestCase.php

@@ -551,7 +551,7 @@ public function testExtensionValid(string $name)
         $this->assertNoViolation();
     }
 
-    private function validExtensionProvider(): iterable
+    private static function validExtensionProvider(): iterable
     {
         yield ['test.gif'];
         yield ['test.png.gif'];
@@ -582,7 +582,7 @@ public function testExtensionInvalid(string $name, string $extension)
             ->assertRaised();
     }
 
-    private function invalidExtensionProvider(): iterable
+    private static function invalidExtensionProvider(): iterable
     {
         yield ['test.gif', 'gif'];
         yield ['test.png.gif', 'gif'];

Tests/Constraints/ImageValidatorTest.php

@@ -564,7 +564,7 @@ public function testInvalidMimeTypeWithNarrowedSet(Image $constraint)
             ->assertRaised();
     }
 
-    public function provideInvalidMimeTypeWithNarrowedSet()
+    public static function provideInvalidMimeTypeWithNarrowedSet()
     {
         yield 'Doctrine style' => [new Image([
             'mimeTypes' => [

Tests/Constraints/UniqueValidatorTest.php

@@ -40,7 +40,7 @@ public function testValidValues($value)
         $this->assertNoViolation();
     }
 
-    public function getValidValues()
+    public static function getValidValues()
     {
         return [
             yield 'null' => [[null]],
@@ -73,7 +73,7 @@ public function testInvalidValues($value)
              ->assertRaised();
     }
 
-    public function getInvalidValues()
+    public static function getInvalidValues()
     {
         $object = new \stdClass();
 
@@ -154,7 +154,7 @@ public function testExpectsNonUniqueObjects($callback)
             ->assertRaised();
     }
 
-    public function getCallback(): array
+    public static function getCallback(): array
     {
         return [
             'static function' => [static function (\stdClass $object) {
@@ -241,7 +241,7 @@ public function testCollectionFieldNamesMustBeString(string $type, mixed $field)
         $this->validator->validate([['value' => 5], ['id' => 1, 'value' => 6]], new Unique(fields: [$field]));
     }
 
-    public function getInvalidFieldNames(): array
+    public static function getInvalidFieldNames(): array
     {
         return [
             ['stdClass', new \stdClass()],
@@ -265,7 +265,7 @@ public function testInvalidCollectionValues(array $value, array $fields)
             ->assertRaised();
     }
 
-    public function getInvalidCollectionValues(): array
+    public static function getInvalidCollectionValues(): array
     {
         return [
             'unique string' => [[