fix: omit empty arrays and objects too

src/Data/YAML/Foreign/Encode.js

@@ -16,11 +16,12 @@ export function toYAMLImpl(a) {
   const replacer = (_, o) => {
     if (typeof o === 'object') {
       Object.entries(o).forEach(([k, v]) => {
-        if (typeof v === 'undefined' || v === null) {
+        if (typeof v === 'undefined' || v === null || (v instanceof Array && v.length === 0) || (typeof v === 'object' && Object.keys(v).length === 0)) {
           delete o[k]
         }
       })
     }
+
     return o
   }