Float number calculation loses accuracy

[Alanscut]

Describe the bug
float number calculation loses accuracy.

To Reproduce
Steps to reproduce the behavior:
duration sometimes can't get accurate results, e.g.
the result should be 240, not 239.99999999906868

var duration = moment.duration(1.1234, 'hours');
console.log(duration.milliseconds()); // 239.99999999906868

Expected behavior
when there are float numbers, we could get the accurate result.

Environment

• moment version: 2.26.0
• OS: win10, 64