Sources: FFmpeg migrated to "shared" from "static"

For some unknown reason, `ffmpeg-4.3.1-win64-static.zip` is removed from
Zeranoe FFmpeg Builds website, while `ffmpeg-4.3.1-win32-static.zip` is
still available. Although the `ffmpeg.zeranoe.com` won't close until Sep 18,
2020, it is necessary to use `ffmpeg-4.3.1-win64-shared.zip` instead.

Thanks to the farsighted code with wildcard, there is no need to modify
the code about the deployment of FFmpeg.

Related Issue:
[#14](#14)

res/sources.txt

@@ -1,7 +1,7 @@
 ## Sources List of "video-downloader-deploy"
 ## https://github.com/LussacZheng/video-downloader-deploy/blob/master/res/sources.txt
 ## For Initial Deployment; Deployment of FFmpeg; Upgrade of You-Get.
-## ( Auto-Generated by "AutoGenerateLatestSourcesLists.bat" at 2020-09-06 15:22:10 )
+## ( Auto-Generated by "AutoGenerateLatestSourcesLists.bat" at 2020-09-10 15:19:56 )
 
 <!-- DO NOT EDIT THIS FILE unless you understand the EXAMPLE. -->
 
@@ -110,8 +110,8 @@ SystemType{
 ## ffmpeg-static.zip , v4.3.1
 SystemType{
     [64]
-    https://ffmpeg.zeranoe.com/builds/win64/static/ffmpeg-4.3.1-win64-static.zip
+    https://ffmpeg.zeranoe.com/builds/win64/shared/ffmpeg-4.3.1-win64-shared.zip
     [32]
-    @ https://ffmpeg.zeranoe.com/builds/win32/static/ffmpeg-4.3.1-win32-static.zip
+    @ https://ffmpeg.zeranoe.com/builds/win32/shared/ffmpeg-4.3.1-win32-shared.zip
 }
 [/ffmpeg]