chore: added missing variable

[sandeep-deriv]

No description provided.

[review-deriv]

PR description is too short. You can use this format:

# Description
This is a summary of the changes. This should describe why do we need this change.
Whys and Hows come here.

# Cards
* https://clickup.com/12345
* https://clickup.com/12346

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Name	Status	Preview	Updated (UTC)
deriv-api-docs	✅ Ready (Inspect)	Visit Preview	Apr 1, 2024 8:15am

[coveralls]

Pull Request Test Coverage Report for Build 8505703055

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 97.178%

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Totals
Change from base Build 8505635781:	0.0%
Covered Lines:	1700
Relevant Lines:	1710

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💛 - Coveralls