Change "requires" -> "depends" in fabric.mod.json (#124)

It was renamed in schemaVersion 1 (see fabric-example-mod).

src/main/resources/fabric.mod.json

@@ -31,7 +31,7 @@
       "me.shedaniel.rei.plugin.DefaultAutoCraftingPlugin"
     ]
   },
-  "requires": {
+  "depends": {
     "fabricloader": ">=0.4.0",
     "cloth": "*"
   },