react-accordion: Replacing use of functions in makeStyles with direct use of tokens

[khmakoto]

Pull request checklist

• Addresses an existing issue: Implements part of RFC: no functions in makeStyles() #20651
• Include a change request file using $ yarn change

Description of changes

This PR follows #21026.

This PR replaces the use of functions in makeStyles calls in the react-accordion package with direct use of the tokens exported from @fluentui/react-theme.

[fabricteam]

📊 Bundle size report

Unchanged fixtures

Package & Exports	Size (minified/GZIP)
react-make-styles makeStaticStyles (runtime)	7.602 kB 3.325 kB
react-make-styles makeStyles + mergeClasses (runtime)	22.006 kB 8.311 kB
react-make-styles makeStyles + mergeClasses (build time)	2.689 kB 1.23 kB
react-theme Teams: all themes	29.344 kB 6.55 kB
react-theme Teams: Light theme	18.4 kB 5.273 kB

_{🤖 This report was generated against 28ceaaa83cd92a0389c466f0b15b283e3d9b08e4}

[size-auditor]

Asset size changes

Size Auditor did not detect a change in bundle size for any component!

Baseline commit: 28ceaaa83cd92a0389c466f0b15b283e3d9b08e4 (build)