Update sizes

Author: github-actions[bot]

vcmi-1.4.json

@@ -308,7 +308,7 @@
 			"https://raw.githubusercontent.com/vcmi-mods/tartarus-town/main/screenshots/screen5.png",
 			"https://raw.githubusercontent.com/vcmi-mods/tartarus-town/main/screenshots/screen6.png"
 		],
-		"downloadSize" : 16.618
+		"downloadSize" : 16.491
 	},
 	"preserve-town" : {
 		"mod" : "https://raw.githubusercontent.com/vcmi-mods/preserve-town/vcmi-1.4/preserve/mod.json",