By Michelle Nichols UNITED NATIONS (Reuters) -U.S. President Joe Biden said on Monday he is ready to pursue a new nuclear arms deal with Russia and called on Moscow to act in good faith as his Russian counterpart Vladimir Putin said there could be no winners in any nuclear war. Both leaders issued written statements as diplomats gathered for a month-long U.N. conference to review the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). It was supposed to take place in 2020 but was delayed by the COVID-19 pandemic. “It occurs at a time of nuclear danger not seen since the height of the Col…