test(fast-inbox): assert the real bucket hint in the l1 publisher propose expectation (A-1388)

The streaming rework proposes with the Inbox's current bucket seq; the
expected propose calldata must carry the same hint.

Author: spalladino

yarn-project/sequencer-client/src/publisher/l1_publisher.integration.test.ts

@@ -673,7 +673,7 @@ describe('L1Publisher integration', () => {
               oracleInput: {
                 feeAssetPriceModifier: 0n,
               },
-              bucketHint: 0n,
+              bucketHint,
             },
             CommitteeAttestationsAndSigners.packAttestations([]),
             [],