fix(firestore): spread args into query to quiet deprecation

previously the args were sent through from modular packed into an
array, but they needed to be spread in order for the args to be correct
and for the deprecation marker to follow them through and not trigger
deprecation warnings

Author: mikehardy

packages/firestore/lib/modular/query.js

@@ -28,7 +28,7 @@ class QueryConstraint {
   }
 
   _apply(query) {
-    return query[this.type].apply(query, this._args, MODULAR_DEPRECATION_ARG);
+    return query[this.type].call(query, ...this._args, MODULAR_DEPRECATION_ARG);
   }
 }