By James Davey LONDON (Reuters) -British retailer Marks & Spencer will pull out of Russia altogether and joined rivals in warning about the outlook for the current year amid a worsening cost-of-living crunch. The 138-year-old clothing and food company ceased shipments to Russia in March and it said on Wednesday it would get out of its franchise there, taking a charge of 31 million pounds ($39 million). M&S reported adjusted pretax profit of 522.9 million pounds in the year to April 2 – in line with analysts forecasts and up from just 41.6 million pounds in the pandemic hit 2020-21 year. But fo…