chore(BranchName): Move BranchName component css module feature flag to ga (#5381)

* Move BranchName to ga

* Create famous-laws-confess.md

Author: jonrohan

.changeset/famous-laws-confess.md

@@ -0,0 +1,5 @@
+---
+"@primer/react": patch
+---
+
+Move BranchName component css module feature flag to ga

packages/react/src/BranchName/BranchName.tsx

@@ -31,7 +31,7 @@ type BranchNameProps<As extends React.ElementType> = {
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 function BranchName<As extends React.ElementType>(props: BranchNameProps<As>, ref: ForwardedRef<any>) {
   const {as: BaseComponent = 'a', className, children, sx, ...rest} = props
-  const enabled = useFeatureFlag('primer_react_css_modules_staff')
+  const enabled = useFeatureFlag('primer_react_css_modules_ga')
 
   if (enabled) {
     if (sx) {