Update xo

Author: wooorm

package.json

@@ -47,7 +47,7 @@
     "type-coverage": "^2.0.0",
     "typescript": "^4.0.0",
     "unified": "^9.0.0",
-    "xo": "^0.39.0"
+    "xo": "^0.42.0"
   },
   "scripts": {
     "prepack": "npm run build && npm run format",

test.js

@@ -113,19 +113,18 @@ test('isElement', (t) => {
     )
 
     st.equal(
-      isElement({type: 'element', tagName: 'a', children: []}, (node) => {
-        return node.children.length === 0
-      }),
+      isElement(
+        {type: 'element', tagName: 'a', children: []},
+        (node) => node.children.length === 0
+      ),
       true,
       'should call `test` if the given node is a valid element (1)'
     )
 
     st.equal(
       isElement(
         {type: 'element', tagName: 'a', children: [{type: 'text'}]},
-        (node) => {
-          return node.children.length === 0
-        }
+        (node) => node.children.length === 0
       ),
       false,
       'should call `test` if the given node is a valid element (2)'