feat: Update ClassDiagram rendering to use default RenderOptions

Author: tasuku43

tests/ClassDiagramRenderer/ClassDiagramBuilderTest.php

@@ -33,7 +33,7 @@ public function testBuildFromSampleProject(): void
 
         $classDiagram = $this->classDigagramBuilder
             ->build($path)
-            ->render();
+            ->render(RenderOptions::default());
 
         $expectedDiagram = <<<'EOT'
 classDiagram
@@ -76,7 +76,7 @@ public function testBuildFromSampleClass(): void
 
         $classDiagram = $this->classDigagramBuilder
             ->build($path)
-            ->render();
+            ->render(RenderOptions::default());
 
         $expectedDiagram = <<<'EOT'
 classDiagram

tests/ClassDiagramRenderer/ClassDiagramTest.php

@@ -5,6 +5,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Tasuku43\MermaidClassDiagram\ClassDiagramRenderer\ClassDiagram;
+use Tasuku43\MermaidClassDiagram\ClassDiagramRenderer\RenderOptions;
 use Tasuku43\MermaidClassDiagram\ClassDiagramRenderer\Node\Class_;
 use Tasuku43\MermaidClassDiagram\ClassDiagramRenderer\Node\Interface_;
 use Tasuku43\MermaidClassDiagram\ClassDiagramRenderer\Node\Relationship\Inheritance;
@@ -26,7 +27,7 @@ public function testAddNode(): void
         $this->assertSame($diagram, $resultDiagram);
 
         // Verify the node is included in the rendered output
-        $rendered = $diagram->render();
+        $rendered = $diagram->render(RenderOptions::default());
         $expectedOutput = <<<'EOT'
 classDiagram
     class TestClass {
@@ -57,7 +58,7 @@ public function testAddRelationships(): void
         $diagram->addNode($class1)->addNode($class2);
 
         // Verify the relationship is included in the rendered output
-        $rendered = $diagram->render();
+        $rendered = $diagram->render(RenderOptions::default());
         $expectedOutput = <<<'EOT'
 classDiagram
     class Class1 {
@@ -86,7 +87,7 @@ public function testRender(): void
                 ->addNode($interface)
                 ->addRelationships($relationship);
 
-        $rendered = $diagram->render();
+        $rendered = $diagram->render(RenderOptions::default());
         $expectedOutput = <<<'EOT'
 classDiagram
     class TestClass {