spec fixes for DNS location property

[tanish-okta]

PR Checklist

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• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Adding Tests
• Build related changes
• CI related changes
• Documentation changes
• Other... Please describe:

What is the current behavior?

The locations property under dynamic network zone was not parsed correctly in the SDK.
"locations":[{"country":"RU"}] was parsed as "locations":{"0":{"country":"RU"}}

Issue Number: N/A

What is the new behavior?

Corrected the spec properties and the parsing logic works as expected.

Does this PR introduce a breaking change?

• Yes
• No

Other information

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