fix: preventing hang when TCPSocket readable, but no app-data available

Author: dotconfig404

lib/net/http.rb

@@ -2495,7 +2495,7 @@ def begin_transport(req)
           debug 'Conn close because of keep_alive_timeout'
           @socket.close
           connect
-        elsif @socket.io.to_io.wait_readable(0) && @socket.eof?
+        elsif @socket.io.to_io.wait_readable(0) && @socket.io.read_nonblock(1, exception: false).nil?
           debug "Conn close because of EOF"
           @socket.close
           connect