Demo nginx version upgrade

[swatiganesh]

:nut_and_bolt: Description: What code changed, and why?

Updated nginx-version to v1.25.4

:chains: Related Resources

https://chefio.atlassian.net/browse/CHEF-5728

:+1: Definition of Done

Updated nginx-version to v1.25.4

:athletic_shoe: How to Build and Test the Change

rebuild components/automate-es-gateway rebuild components/automate-load-balancer

:white_check_mark: Checklist

All PRs must tick these:

• [x] I have read the CONTRIBUTING document.
• [x] All commits signed-off for the Developer Certification of Origin.

With occasional exceptions, all PRs from Progress employees must tick these:

• [x] Is the code clear? (complicated code or lots of comments--subdivide and use well-named methods, meaningful variable names, etc.)
• [x] Consistency checked? (user notifications, user prompts, visual patterns, code patterns, variable names)
• [x] Repeated code blocks eliminated? (adapt and reuse existing components, blocks, functions, etc.)
• [x] Spelling, grammar, typos checked? (at a minimum use make spell in any component directory)
• [x] Code well-formatted? (indents, line breaks, etc. improve rather than hinder readability)

All PRs from Progress employees should tick these if appropriate:

• [ ] Tests added/updated? (all new code needs new tests)
• [ ] Docs added/updated? (all customer-facing changes)

Please add a note next to any checkbox above if you are NOT ticking it.

:camera: Screenshots, if applicable

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