fix: Fix SignatureController hub cancelWithReason event handler (#29673)

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## **Description**

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This PR aims to fix `cancelWithReason` event handler which is causing
`rejectPendingApprovals` to be hang and throw.

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## **Related issues**

Fixes: #29663

## **Manual testing steps**

1. Create multiple signature request without accept or reject
2. Close notification window
3. See that no more badge number in extension bar

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Author: OGPoyraz

app/scripts/metamask-controller.js

@@ -2114,7 +2114,7 @@ export default class MetamaskController extends EventEmitter {
 
     this.signatureController.hub.on(
       'cancelWithReason',
-      ({ message, reason }) => {
+      ({ metadata: message, reason }) => {
         this.metaMetricsController.trackEvent({
           event: reason,
           category: MetaMetricsEventCategory.Transactions,