[ie/vimeo] Added support for shiey.com Fixes #12129

The iframe in shiey.com is javascript generated so the vimeo
 _EMBED_REGEX was not catching it. Added a specific line for shiey.com

Co-authored-by: Miguel Noronha <miguel.noronha@tecnico.ulisboa.pt>

supportedsites.md

@@ -1327,6 +1327,7 @@ # Supported sites
  - **ShahidShow**
  - **SharePoint**
  - **ShareVideosEmbed**
+ - **Shiey**
  - **ShemarooMe**
  - **ShowRoomLive**
  - **ShugiinItvLive**: 衆議院インターネット審議中継

yt_dlp/extractor/vimeo.py

@@ -403,6 +403,7 @@ class VimeoIE(VimeoBaseInfoExtractor):
         r'<embed[^>]+?src=(["\'])(?P<url>(?:https?:)?//(?:www\.)?vimeo\.com/moogaloop\.swf.+?)\1',
         # Non-standard embedded Vimeo player
         r'<video[^>]+src=(["\'])(?P<url>(?:https?:)?//(?:www\.)?vimeo\.com/[0-9]+)\1',
+        r'iframe src=\\&quot;(?P<url>(https?://player\.vimeo\.com/video/[^\\&]+))',
     ]
     _TESTS = [
         {