Adding changes to include privatelink in hostname from account

[vinodseshadri]

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1. What GitHub issue is this PR addressing? Make sure that there is an accompanying issue to your PR.
   SNOW-1507358: OSCP validation fails if hostname is not provided  #1980
   Fixes SNOW-1507358: OSCP validation fails if hostname is not provided  #1980

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   • I am adding a new automated test(s) to verify correctness of my new code
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This adds 'privatelink' in hostname if 'private link' is present in account name. This helps to properly set the host name.

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[vinodseshadri]

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[sfc-gh-dszmolka]

i suggest we hold with this PR for now until the underlying issue is fully clarified and root caused