docs: fix the image in golang quickstart

[pratik-mahalle]

What has changed?

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This PR Resolves #(issue)

Type of change

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• 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 not work as expected).
• Documentation update (if none of the other choices apply).

How Has This Been Tested?

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Checklist:

• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.

[Copilot]

Pull Request Overview

This PR fixes broken image references in the Solang documentation by updating the file paths to match existing image files.

• Updated two image file paths to use correct filenames
• Removed version suffixes from image references to point to existing files

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[Achanandhi-M]

LGTM