Update sizes

Author: github-actions[bot]

vcmi-1.6.json

@@ -779,7 +779,7 @@
 			"https://raw.githubusercontent.com/vcmi-mods/new-summon-spells/vcmi-1.5/screenshots/screen4.png",
 			"https://raw.githubusercontent.com/vcmi-mods/new-summon-spells/vcmi-1.5/screenshots/screen5.png"
 		],
-		"downloadSize" : 4.214
+		"downloadSize" : 4.212
 	},
 	"witchking-artifacts" : {
 		"mod" : "https://raw.githubusercontent.com/vcmi-mods/witchking-artifacts/vcmi-1.6/witchking-artifacts/mod.json",