test: Add pluralPascal tests with various count parameters

Test pluralPascal behavior with different count values (0, 1, 2),
arrays and Countable objects to ensure comprehensive coverage.

Author: mohammadrasoulasghari

tests/Support/SupportStrTest.php

@@ -1797,8 +1797,22 @@ public function testPluralPascal(): void
         $this->assertSame('UserGroups', Str::pluralPascal('UserGroup'));
         $this->assertSame('ProductCategories', Str::pluralPascal('ProductCategory'));
 
-
-
+        // Test with different count values and array
+        $this->assertSame('UserGroups', Str::pluralPascal('UserGroup', 0)); // plural
+        $this->assertSame('UserGroup', Str::pluralPascal('UserGroup', 1));  // singular
+        $this->assertSame('UserGroups', Str::pluralPascal('UserGroup', 2)); // plural
+        $this->assertSame('UserGroups', Str::pluralPascal('UserGroup', []));   // plural (empty array count is 0)
+
+        // Test with Countable
+        $countable = new class implements \Countable
+        {
+            public function count(): int
+            {
+                return 3;
+            }
+        };
+
+        $this->assertSame('UserGroups', Str::pluralPascal('UserGroup', $countable));
     }
 }