bump to 1.21.3 (#26)

我希望Mojang不要明天就出个1.21.4

Author: dovisutu

src/main/resources/i18nMetaData.json

@@ -130,7 +130,7 @@
       ]
     },
     {
-      "gameVersions": "[1.21.2,1.21.2]",
+      "gameVersions": "[1.21.2,1.21.3]",
       "packFormat": 42,
       "convertFrom": [
         "1.21",