fix(elements): Export sign-in captcha (#4548)

.changeset/swift-camels-explode.md

@@ -0,0 +1,5 @@
+---
+'@clerk/elements': patch
+---
+
+Export `<SignIn.Captcha />` from root sign-in exports.

packages/elements/src/react/sign-in/index.ts

@@ -5,6 +5,7 @@ export { SignInRoot as SignIn, SignInRoot as Root } from './root';
 export { SignInStep as Step } from './step';
 export { SignInAction as Action } from './action';
 export { SignInPasskey as Passkey } from './passkey';
+export { SignInCaptcha as Captcha } from './captcha';
 export { SignInSupportedStrategy as SupportedStrategy } from './choose-strategy';
 export { SignInSessionList as SessionList, SignInSessionListItem as SessionListItem } from './choose-session';