Charlie Hebdo published caricatures of Ayatollah Ali Khamenei last week in support of the months-long protests in Iran sparked by the death in custody of Mahsa Amini, following her arrest for allegedly violating the country's strict dress code.Iran has warned France over the "insulting and indecent" cartoons, which appeared in a special edition to mark the anniversary of the deadly 2015 attack on the magazine's Paris offices which left 12 dead.