Try to reduce rustdoc GUI tests flakyness

Author: GuillaumeGomez

package.json

@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "browser-ui-test": "^0.23.1",
+    "browser-ui-test": "^0.23.2",
     "es-check": "^9.4.4",
     "eslint": "^8.57.1",
     "typescript": "^5.8.3"

tests/rustdoc-gui/utils.goml

@@ -110,6 +110,7 @@ define-function: (
         call-function: ("open-search", {})
         // We empty the search input in case it wasn't empty.
         set-property: (".search-input", {"value": ""})
+        focus: ".search-input"
         // We write the actual query.
         write-into: (".search-input", |query|)
         press-key: 'Enter'