[SDK-144] remove node-only unref() call

[lposen]

🔹 JIRA Ticket(s) if any

• SDK-144

✏️ Description

Removestimeout.unref(), which can only be used in nodejs.

[github-actions]

Lines	Statements	Branches	Functions
	51.25% (245/478)	23.28% (44/189)	44.23% (69/156)

[qltysh]

Diff Coverage: The code coverage on the diff in this pull request is 100.0%.

Total Coverage: This PR will decrease coverage by 0.1%.

File Coverage Changes

Path	File Coverage Δ	Indirect
src/core/classes/Iterable.ts	-0.0

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• Diff Coverage: Coverage for added or modified lines of code (excludes deleted files). Learn more.

• Total Coverage: Coverage for the whole repository, calculated as the sum of all File Coverage. Learn more.

• File Coverage: Covered Lines divided by Covered Lines plus Missed Lines. (Excludes non-executable lines including blank lines and comments.)

  • Indirect Changes: Changes to File Coverage for files that were not modified in this PR. Learn more.

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[Copilot]

Pull Request Overview

Removes Node.js-specific timeout.unref() call to ensure cross-platform compatibility. The timeout mechanism for handling auth responses is simplified by removing the Node.js-only API call that prevented the process from being kept alive.

• Removed timeoutId variable and unref() call for platform compatibility
• Simplified timeout handling for auth responses

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