fix:修正在绘制自定义finderPatternImage时，同时绘制QuietZones会出现位置异常的BUG

[koaqiu]

修正在绘制自定义finderPatternImage时，同时绘制QuietZones会出现位置异常的BUG

[Shane32]

English translation (via ChatGPT): When customizing the finderPatternImage, a bug occurs where drawing the QuietZones at the same time results in abnormal positioning.

[Shane32]

can_create_standard_qrcode_graphic_with_custom_finder tests this scenario. However, the finder image used is completely transparent.

Assuming we alter the test with this code:

            var finder = new Bitmap(70, 70);
            using (var g = Graphics.FromImage(finder))
            {
                g.FillRectangle(Brushes.Red, 0, 0, 70, 70);
            }

It would currently produce this image:

With this PR (and the above alteration to the test) it will produce this image:

I suggest the test be altered as shown above, the hash updated, and the PR merged.

[codebude]

Can't checkout the source branch to edit/add test cases. I'll merge first and then sent in further commits to fix the test case.

[codebude]

Updated the test case in e094cd3
Testrunner finished successfully: https://github.com/codebude/QRCoder/actions/runs/8790250819