calling HPCCFileSprayClient spray fails with a error "cannot connect"

[rpastrana]

Description:
calling HPCCFileSprayClient spray fails with a error "cannot connect"

Steps to reproduce:
1 - provide connection values for alpha-dev:8010 including username and password
2 - instantiate HPCCFilesprayclient, call the ping method

Expected behavior: successful ping response

Actual behavior: exception reported

Environment: alpha-dev, configuration http://alpha-dev:8010/

[github-actions]

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