fix: schema is always GenericSchema

Author: avallete

src/SupabaseClient.ts

@@ -35,7 +35,7 @@ export default class SupabaseClient<
     : string & keyof Database,
   Schema extends GenericSchema = Database[SchemaName] extends GenericSchema
     ? Database[SchemaName]
-    : any
+    : GenericSchema
 > {
   /**
    * Supabase Auth allows you to create and manage user sessions for access to data that is secured by access policies.