Flake in `Tests/LibWeb/Text/input/wpt-import/webstorage/symbol-props.window.html`

Just saw a random flake of this on CI: https://github.com/LadybirdBrowser/ladybird/actions/runs/28592490247/job/84779306527#step:20:13718 ``` --- /__w/ladybird/ladybird/Tests/LibWeb/Text/expected/./wpt-import/webstorage/symbol-props.window.txt +++ /__w/ladybird/ladybird/Tests/LibWeb/Text/expected/./wpt-import/webstorage/symbol-props.window.txt @@ -2,7 +2,8 @@ Found 14 tests -14 Pass +7 Pass +7 Fail Pass localStorage: plain set + get (loose) Pass localStorage: plain set + get (strict) Pass localStorage: defineProperty + get @@ -10,10 +11,10 @@ Pass localStorage: get with symbol on prototype Pass localStorage: delete existing property Pass localStorage: delete non-existent property -Pass sessionStorage: plain set + get (loose) -Pass sessionStorage: plain set + get (strict) -Pass sessionStorage: defineProperty + get -Pass sessionStorage: defineProperty not configurable -Pass sessionStorage: get with symbol on prototype -Pass sessionStorage: delete existing property -Pass sessionStorage: delete non-existent property +Fail sessionStorage: plain set + get (loose) +Fail sessionStorage: plain set + get (strict) +Fail sessionStorage: defineProperty + get +Fail sessionStorage: defineProperty not configurable +Fail sessionStorage: get with symbol on prototype +Fail sessionStorage: delete existing property +Fail sessionStorage: delete non-existent property ``` There are no other logs. cc: @shannonbooth you imported this test originally, maybe you have some idea.