Update WinGlContext.cs

src/Raylib-CSharp/Rendering/Gl/Contexts/WinGlContext.cs

@@ -51,7 +51,7 @@ public nint GetProcAddress(string procName) {
     /// If the function fails, the return value is <see cref="nint.Zero"/>. To get extended error information, call <see cref="Marshal.GetLastWin32Error"/>.
     /// </returns>
     [LibraryImport(Kernel32, EntryPoint = "LoadLibraryA", SetLastError = true, StringMarshalling = StringMarshalling.Utf8)]
-    private static partial nint LoadLibrary([MarshalAs(UnmanagedType.LPStr)] string fileName);
+    private static partial nint LoadLibrary(string fileName);
 
     /// <summary>
     /// Retrieves the address of an exported function or variable from the specified dynamic-link library (DLL).