Only enable pulse for infinite datasets (#10305)

Author: Sean Naren

pytorch_lightning/callbacks/progress/rich_progress.py

@@ -37,7 +37,7 @@ def render(self, task: "Task") -> ProgressBar:
                 total=max(0, task.total),
                 completed=max(0, task.completed),
                 width=None if self.bar_width is None else max(1, self.bar_width),
-                pulse=not task.started or math.isfinite(task.remaining),
+                pulse=not task.started or not math.isfinite(task.remaining),
                 animation_time=task.get_time(),
                 style=self.style,
                 complete_style=self.complete_style,