Add --latest flag for yarn upgrade-interactive

src/_yarn

@@ -71,7 +71,7 @@ _global_commands=(
   'bin:Displays the location of the yarn bin folder'
   'remove:Remove installed package from dependencies updating package.json'
   'upgrade:Upgrades packages to their latest version based on the specified range'
-  'upgrade-interactive'
+  'upgrade-interactive:Interactively upgrade packages'
 )
 
 _yarn_commands_scripts() {
@@ -256,6 +256,11 @@ _yarn() {
             '*:: :->team_args'
         ;;
 
+        upgrade-interactive)
+          _arguments \
+            '--latest:use the version tagged latest in the registry:'
+        ;;
+
         version)
           _arguments \
             '--new-version:version:' \