vcpkg.json manifest: require glfw 3.3.8 (3.3.9 can fail under windows)

    Inside choosePixelFormat(), nativeCount is 50 instead of 14 (for example), and we get a failure here:

        for (i = 0;  i < nativeCount;  i++)
        {
            _GLFWfbconfig* u = usableConfigs + usableCount;
            pixelFormat = i + 1;

            if (_glfw.wgl.ARB_pixel_format)
            {
                // Get pixel format attributes through "modern" extension

                if (!wglGetPixelFormatAttribivARB(window->context.wgl.dc,
                                                  pixelFormat, 0,
                                                  attribCount,
                                                  attribs, values))
                {
    // We will fail here
                    _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
:

vcpkg.json

@@ -35,5 +35,8 @@
         "freetype-lunasvg"
       ]
     }
+  ],
+  "overrides": [
+    { "name": "glfw3", "version": "3.3.8" }
   ]
 }