[rb] Update note for return value of Hash

[luke-hill]

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Description

Motivation and Context

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

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PR Type

documentation

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Description

• Updated the documentation for the cookie_named method in the Selenium WebDriver Ruby library.
• Clarified that the method returns a Hash and throws a NoSuchCookieError if the cookie is not found.

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Changes walkthrough 📝

	Relevant files
Documentation	manager.rb Update return type documentation for `cookie_named` method rb/lib/selenium/webdriver/common/manager.rb Updated the return type documentation for the cookie_named method. Changed the return type from [Hash, nil] to [Hash]. +1/-1

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[qodo-merge-pro]

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🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Documentation Accuracy The updated documentation removes the 'nil' from the return type, but it should be verified if the method can actually never return nil. The implementation should be checked to confirm this change is accurate.

[qodo-merge-pro]

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