[NODE] ethtx task fails to parse minConfirmations as uint and string from cborparse

Description

Attempting to set ethtx minConfirmations via cborparse output makes the jobrun error with:

  "__typename": "JobRun",
  "id": "110",
  "allErrors": [
    "minConfirmations: strconv.ParseUint: parsing "$(decode_cbor.minConfirmations)": invalid syntax: bad input for task"
  ],
  "createdAt": "2022-05-25T13:15:26.136101Z",
  "fatalErrors": [
    "minConfirmations: strconv.ParseUint: parsing "$(decode_cbor.minConfirmations)": invalid syntax: bad input for task"
  ],

No matter whether I send it as uint256 or string, the error is the same.

Strategy 1 - Passing minConfirmations as uint256:

_req.addUint("minConfirmations", uint256(spec.minConfirmations)); // NB: I do have a uint48

Strategy 2 - Passing minConfirmations as string:

_req.add("minConfirmations", Strings.toString(spec.minConfirmations)); // NB: I do use OZ Strings library

However, gasLimit can be passed as uint256 and set via cborparse output:

req.addUint("gasLimit", uint256(gasLimit));

Basic Information

Reproduced with Chainlink Node v1.2.0 and v1.4.1

Environment Variables

Not relevant

Steps to Reproduce

The hard way is implementing a consumer contract that sends minConfirmations. I haven't tried it using a webhook job though (I remember breaking an old node version attempting to make an ethtx via webhook job).

Thanks!

Reproduce an ethtx job using cborparse output for minConfirmations, comparing uint256 and string inputs with the working gasLimit case. Trace where these values are parsed and confirm completion when minConfirmations is accepted and the reported job run no longer contains the ParseUint error.