Remove unnecessary blank line at the end of GetSubmodelElementsFileAttachmentTest class

Author: mm-mcn

source/AAS.TwinEngine.Plugin.TestPlugin.PlaywrightTests/SubmodelRepository/GetSubmodelElementsFileAttachmentTest.cs

@@ -62,5 +62,4 @@ public async Task GetSubmodelElementFileAttachment_WhenSubmodelDoesNotExist_Shou
         // Assert
         Assert.Equal(404, response.Status);
     }
-    
 }