fix: task executor bar chart error (#12894)

### What problem does this PR solve?

Fix wrong data rendered in task executor bar chart 

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/pages/admin/task-executor-detail.tsx

@@ -83,8 +83,6 @@ function TaskExecutorDetail({ content }: TaskExecutorDetailProps) {
 
         const items = data.map((x) => ({
           ...x,
-          done: Math.floor(Math.random() * 100),
-          failed: Math.floor(Math.random() * 100),
           now: dayjs(x.now).valueOf(),
         }));
 
@@ -126,7 +124,10 @@ function TaskExecutorDetail({ content }: TaskExecutorDetailProps) {
                       tick={{ fill: 'rgb(var(--text-secondary))' }}
                     /> */}
 
-                  <CartesianGrid strokeDasharray="3 3" />
+                  <CartesianGrid
+                    strokeDasharray="3 3"
+                    className="stroke-border-default"
+                  />
 
                   <Tooltip
                     trigger="click"