fix(react-progress): add subtle animation for indeterminate progress bar when reduced motion mode is enabled

[dmytrokirpa]

Previous Behavior

The indeterminate progress bar does not animate when prefers-reduced-motion is set to reduce.

New Behavior

The indeterminate progress bar animates in all situations

Related Issue(s)

• Fixes [Bug]: Indeterminate Progress Bar is not animated when reduced motion is enabled #34110
• Related to https://github.com/microsoft/fluentai/pull/912

[github-actions]

📊 Bundle size report

Package & Exports	Baseline (minified/GZIP)	PR	Change
react-components react-components: entire library	1.264 MB 317.952 kB	1.264 MB 318.028 kB	380 B 76 B
react-progress ProgressBar	17.202 kB 6.919 kB	17.582 kB 6.988 kB	380 B 69 B

Unchanged fixtures

Package & Exports	Size (minified/GZIP)
react-components react-components: Button, FluentProvider & webLightTheme	69.779 kB 20.273 kB
react-components react-components: Accordion, Button, FluentProvider, Image, Menu, Popover	227.642 kB 65.909 kB
react-components react-components: FluentProvider & webLightTheme	44.613 kB 14.641 kB
react-portal-compat PortalCompatProvider	8.386 kB 2.624 kB
react-timepicker-compat TimePicker	110.646 kB 36.578 kB

_{🤖 This report was generated against 6ad03ce04b77a80226cff792d4fc5b42e905a73b}

[github-actions]

Pull request demo site: URL

[github-actions]

🕵🏾‍♀️ visual changes to review in the Visual Change Report

vr-tests-react-components/Positioning 2 screenshots

Image Name	Diff(in Pixels)	Image Type
vr-tests-react-components/Positioning.Positioning end.chromium.png	924	Changed
vr-tests-react-components/Positioning.Positioning end.updated 2 times.chromium.png	913	Changed

vr-tests-react-components/Skeleton converged 1 screenshots

Image Name	Diff(in Pixels)	Image Type
vr-tests-react-components/Skeleton converged.Opaque Skeleton with square - Dark Mode.default.chromium.png	4	Changed