Describe the bug
I've recently upgraded from EUI v37 to v93.
It seems that in the meantime, the animation for EuiProgress was lost.
I suspect: 21a24c3

src/components/progress/_progress.scss had

  &::-webkit-progress-value {
    transition: width $euiAnimSpeedNormal linear;
  }

  &::-moz-progress-bar {
    transition: width $euiAnimSpeedNormal linear;
  }

Impact and severity
Low impact.
Workaround:

.euiProgress[class*="euiProgress-native"]::-webkit-progress-value {
  transition: width 250ms linear;
}

.euiProgress[class*="euiProgress-native"]::-moz-progress-bar {
  transition: width 250ms linear;
}

Environment and versions

• EUI version: v93
• Browser: Chrome, Firefox

To Reproduce
Steps to reproduce the behavior:

1. Open https://eui.elastic.co/#/display/progress#progress-with-values
2. Click Toggle progress

Expected behavior
When updated, progress bar should animate increments.