Update sizes

Author: github-actions[bot]

vcmi-1.7.json

@@ -299,7 +299,7 @@
 			"screenshots" : [
 				"https://raw.githubusercontent.com/vcmi-mods/combine-grail/main/screenshots/screen1.png"
 			],
-			"downloadSize" : 0.294
+			"downloadSize" : 0.505
 		},
 		"fairy-town" : {
 			"mod" : "https://raw.githubusercontent.com/vcmi-mods/fairy-town/vcmi-1.6/fairy-town/mod.json",