Wrong value for getResults end point

[danieltagt]

Hi,

I using youre library and like it :)
I find an issue for the getResults end point here https://github.com/msrivastav13/node-sf-bulk2/blob/master/src/bulk2.ts#L141
It takes the number of the enum eg:
`
await bulkrequest.getResults(jobId, RESULTTYPE.successfulResults)

will return this url

this.endpoint + '/ingest/' + jobId + '/' + 0

instead of the expected url:

this.endpoint + '/ingest/' + jobId + '/' + 'successfulResults'
`

[msrivastav13]

Only few years late but I fixed it today :)