[cookies] Support custom Safari cookies path (#6783)

Authored by: NextFire

yt_dlp/cookies.py

@@ -495,11 +495,15 @@ class WindowsChromeCookieDecryptor(ChromeCookieDecryptor):
 
 
 def _extract_safari_cookies(profile, logger):
-    if profile is not None:
-        logger.error('safari does not support profiles')
     if sys.platform != 'darwin':
         raise ValueError(f'unsupported platform: {sys.platform}')
 
+    if profile:
+        cookies_path = os.path.expanduser(profile)
+        if not os.path.isfile(cookies_path):
+            raise FileNotFoundError('custom safari cookies database not found')
+
+    else:
         cookies_path = os.path.expanduser('~/Library/Cookies/Cookies.binarycookies')
 
         if not os.path.isfile(cookies_path):