parseRawEvents: Cannot read properties of undefined (reading 'map') when topic is missing

[ahmdssi]

Describe the bug
Event topic could be undefined, which is not considered in the code:

ERROR TypeError: Cannot read properties of undefined (reading 'map')
    at /app/node_modules/.pnpm/@stellar+stellar-sdk@14.3.0/node_modules/@stellar/stellar-sdk/lib/rpc/parsers.js:95:26
    at Array.map (<anonymous>)
    at parseRawEvents (/app/node_modules/.pnpm/@stellar+stellar-sdk@14.3.0/node_modules/@stellar/stellar-sdk/lib/rpc/parsers.js:89:99)

What version are you on?
14.3.0

To Reproduce
execute parseRawEvents for block 1263568 on testnet

Expected behavior
topic is considered to possibly be undefined: (evt.topic ?? []).map instead of topic.map

Additional context
The event causing problem:

curl -X POST \
-H 'Content-Type: application/json' \
-d '{
  "jsonrpc": "2.0",
  "id": 8675309,
  "method": "getEvents",
  "params": {
    "startLedger": 1263568,    
    "endLedger": 1263569,
    "pagination": {
      "limit": 20
    }
  }
}' \
https://soroban-rpc.testnet.stellar.gateway.fm | jq

{
  "jsonrpc": "2.0",
  "id": 8675309,
  "result": {
    "events": [
       ...,
      {
        "type": "contract",
        "ledger": 1263568,
        "ledgerClosedAt": "2025-10-26T22:19:10Z",
        "contractId": "CC5E2AZW4DRFDYZHI7M25QKCSMFPUD7C3425BUOW54RU3TQRKUPA64W5",
        "id": "0005426983236280320-0000000000",
        "operationIndex": 0,
        "transactionIndex": 2,
        "txHash": "8735d2c7e31b1f10037f41d723072fbfacd0bbf74ed48f71f8e4211132017123",
        "inSuccessfulContractCall": true,
        "value": "AAAAEAAAAAEAAAACAAAAEgAAAAAAAAAA6l77q0ZD1wnLxQyCbBiGOcbm8+2jMoki9jMGwk+zZ+0AAAAJAAAAAAAAAAAAAAkYTnKgAA=="
      },
      ...,
    ],
    "cursor": "0005426987531239423-4294967295",
    "latestLedger": 1291637,
    "oldestLedger": 1170678,
    "latestLedgerCloseTime": "1761657666",
    "oldestLedgerCloseTime": "1761052138"
  }
}