[http] Retry on socket timeout

Closes #1222

yt_dlp/downloader/http.py

@@ -191,11 +191,13 @@ def establish_connection():
                     # Unexpected HTTP error
                     raise
                 raise RetryDownload(err)
-            except socket.error as err:
-                if err.errno != errno.ECONNRESET:
-                    # Connection reset is no problem, just retry
-                    raise
+            except socket.timeout as err:
                 raise RetryDownload(err)
+            except socket.error as err:
+                if err.errno in (errno.ECONNRESET, errno.ETIMEDOUT):
+                    # Connection reset is no problem, just retry
+                    raise RetryDownload(err)
+                raise
 
         def download():
             nonlocal throttle_start