chore: update to newest version of PHPUnit

I isolated the dependency into a separated vendor folder to prevent
dependency conflict between version of development and production.

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

.gitignore

@@ -1,3 +1,4 @@
 .idea
 .phpunit.result.cache
 vendor
+/vendor-bin/**/vendor/

tests/JSignPDFTest.php

@@ -16,6 +16,7 @@ function exec(string $command, array &$output = null, int &$return_var = null) {
 use Exception;
 use Jeidison\JSignPDF\Sign\JSignService;
 use Jeidison\JSignPDF\Tests\Builder\JSignParamBuilder;
+use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\TestCase;
 
 /**
@@ -75,10 +76,8 @@ public function testSignSuccess()
         $this->assertNotNull($fileSigned);
     }
 
-    /**
-     * @dataProvider providerSignUsingDifferentPasswords
-     */
-    public function testSignUsingDifferentPasswords(string $password)
+    #[DataProvider('providerSignUsingDifferentPasswords')]
+    public function testSignUsingDifferentPasswords(string $password): void
     {
         global $mockExec;
         if (!class_exists('JSignPDF\JSignPDFBin\JavaCommandService')) {
@@ -94,7 +93,7 @@ public function testSignUsingDifferentPasswords(string $password)
         $this->assertNotNull($fileSigned);
     }
 
-    public function providerSignUsingDifferentPasswords()
+    public static function providerSignUsingDifferentPasswords(): array
     {
         return [
             ["with ' quote"],

vendor-bin/phpunit/composer.json

@@ -0,0 +1,5 @@
+{
+    "require-dev": {
+        "phpunit/phpunit": "^11.5"
+    }
+}