fix(connector-besu): toBuffer only supports 0x-prefixed hex was given: 3000000

[petermetz]

Description

The ./packages/cactus-plugin-ledger-connector-besu/src/test/typescript/integration/plugin-ledger-connector-besu/deploy-contract/private-deploy-contract-from-json-web3-eea.test.ts
besu test case is failing consistently.
It might be because of a recent dependency upgrade.

Steps to Reproduce

$ yarn ts-node ./packages/cactus-plugin-ledger-connector-besu/src/test/typescript/integration/plugin-ledger-connector-besu/deploy-contract/private-deploy-contract-from-json-web3-eea.test.ts 


TAP version 13
# Executes private transactions on Hyperledger Besu
[2023-10-13T05:49:59.767Z] DEBUG (BesuMpTestLedger): Instantiated BesuMpTestLedger OK
[2023-10-13T05:50:00.412Z] DEBUG (containers#tryPullImage()): Started ghcr.io/hyperledger/cactus-besu-all-in-one-multi-party:2023-08-08-pr-2596 pull progress stream OK
[2023-10-13T05:50:00.417Z] DEBUG (containers#tryPullImage()): "Pulling from hyperledger/cactus-besu-all-in-one-multi-party"
[2023-10-13T05:50:00.422Z] DEBUG (containers#tryPullImage()): Finished ghcr.io/hyperledger/cactus-besu-all-in-one-multi-party:2023-08-08-pr-2596 pull completely OK
[2023-10-13T05:50:00.423Z] DEBUG (BesuMpTestLedger): Starting ghcr.io/hyperledger/cactus-besu-all-in-one-multi-party:2023-08-08-pr-2596 with options:  {
  HostConfig: {
    AutoRemove: true,
    Env: [],
    Privileged: true,
    PublishAllPorts: true
  }
}
[2023-10-13T05:50:01.288Z] DEBUG (BesuMpTestLedger): Started ghcr.io/hyperledger/cactus-besu-all-in-one-multi-party:2023-08-08-pr-2596 successfully. ID=0350cf884c0c5b010a6145e9835a946e0b94cf05c0d3c296f341f9863b552b6c
[2023-10-13T05:50:01.418Z] DEBUG (containers#tryPullImage()): "Status: Image is up to date for ghcr.io/hyperledger/cactus-besu-all-in-one-multi-party:2023-08-08-pr-2596"

# chainIdMember1=1337
# chainIdMember2=1337
# chainIdMember3=1337
ok 1 web3QuorumMember1 truthy OK
ok 2 web3QuorumMember2 truthy OK
ok 3 web3QuorumMember3 truthy OK
not ok 4 Error: Cannot convert string to buffer. toBuffer only supports 0x-prefixed hex strings and this string was given: 3000000
  ---
    operator: error
    at: bound call (/*****/cacti/node_modules/tape-promise/node_modules/onetime/index.js:30:12)
    stack: |-
      Error: Cannot convert string to buffer. toBuffer only supports 0x-prefixed hex strings and this string was given: 3000000
          at toBuffer (/*****/cacti/packages/cactus-plugin-ledger-connector-besu/node_modules/web3js-quorum/src/util/custom-ethjs-util.js:68:15)
          at PrivateTransaction.setter [as gasLimit] (/*****/cacti/packages/cactus-plugin-ledger-connector-besu/node_modules/web3js-quorum/src/util/custom-ethjs-util.js:144:13)
          at genericSendRawTransaction (/*****/cacti/packages/cactus-plugin-ledger-connector-besu/node_modules/web3js-quorum/src/priv.js:339:17)
          at processTicksAndRejections (node:internal/process/task_queues:95:5)
          at async /*****/cacti/packages/cactus-plugin-ledger-connector-besu/src/test/typescript/integration/plugin-ledger-connector-besu/deploy-contract/private-deploy-contract-from-json-web3-eea.test.ts:103:26
  ...

1..4
# tests 4
# pass  3
# fail  1