Fix plugin update IO logic when replacing jars

patches/api/Update-Folder-Uses-Plugin-Name.patch

@@ -49,7 +49,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +                }
 +                if (!pluginName.equals(updatePluginName)) continue;
 +                try {
-+                    java.nio.file.Files.copy(updateFile.toPath(), file.toPath());
++                    java.nio.file.Files.copy(updateFile.toPath(), file.toPath(), java.nio.file.StandardCopyOption.REPLACE_EXISTING);
 +                } catch (java.io.IOException exception) {
 +                    server.getLogger().log(Level.SEVERE, "Could not copy '" + updateFile.getPath() + "' to '" + file.getPath() + "' in update plugin process", exception);
 +                    continue;