Empty http header array for New Relic uptime storage results in run-time error

[mountaindude]

What version of Butler are you using?

8.5.1

What version of Node.js are you using? Not applicable if you use the standalone version of Butler.

No response

What command did you use to start Butler?

butler.exe -c D:\butler\config\butler-config.yaml --new-relic-account-name ACCOUNTNAME --new-relic-account-id ACCOUNTID --new-relic-api-key APIKEY

What operating system are you using?

Windows, macOS

What CPU architecture are you using?

x86_64

What Qlik Sense versions are you using?

2022 May

Describe the Bug

If the http header section in the config file is empty, a run-time error will occur when Butler tries to store uptime info to New Relic.

    storeNewRelic:
      enable: true
      destinationAccount:
        - SOME_ACCOUNT
      url: https://insights-collector.eu01.nr-data.net/metric/v1   # Where should uptime data be sent?
      header:                       # Custom http headers
        #- name: X-My-Header
        #  value: Header value

The error is:

error: UPTIME NEW RELIC: Error sending uptime: TypeError: globals.config.get is not a function or its return value is not iterable

Expected Behavior

Should be possible to have empty arrays for http headers in the config file.

To Reproduce

No response