feat: enable record import with a Record Number field

[tasshi-me]

Why

Currently, importing (add/upsert) records with a Record Number field fails.
On GUI CSV import, a Record Number field in CSV is ignored and importing is performed successfully.

What

1. Remove a Record Number field from records when upserting

How to test

Using CSV that includes a Record Number field

"recordNumber",uniqueKey,"text"
"1","record1","existing data 1"
"2","record2","existing data 2"
"3","record3","new data"

Execute import command

## upsert: The Record number field is ignored, and importing finishes successfully
node  ./cli.js record import --app $APP_ID --file-path ./records.csv --update-key uniqueKey

## add: The Record number field is still evaluated and causes an error
node ./cli.js record import --app $APP_ID --file-path ./records.csv

Checklist

• Read CONTRIBUTING.md
• Updated documentation if it is required.
• Added tests if it is required.
• Passed yarn lint and yarn test on the root directory.

[ueokande]

LGTM🎋

[hung-cybo]

LGTM