Update troubleshooting steps for hardware replacement

[sirajyasin]

Added firmware verification steps before replacement action.

[prmerger-automator]

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[learn-build-service-prod]

Learn Build status updates of commit ff67a4d:

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File	Status	Preview URL	Details
operator-nexus/troubleshoot-reboot-reimage-replace.md	✅Succeeded

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[v-dirichards]

@gregoberfield

Can you review the proposed changes?

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[Copilot]

Pull request overview

This PR enhances the hardware replacement troubleshooting documentation by adding firmware verification steps before performing replacement actions. The update ensures that operators verify firmware versions align with supported runtime versions and meet minimum requirements before proceeding with hardware replacement.

Key Changes:

• Added firmware verification requirement after physical repairs are completed
• Included reference to minimum firmware requirements documentation with inline link

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[Copilot]

The hyphen character in "best‑practice" appears to be a non-standard character (Unicode non-breaking hyphen U+2011) instead of a regular hyphen. This should be replaced with a standard hyphen (-) for consistency and to avoid potential rendering issues across different platforms and editors.

Suggested change

	After physical repairs are completed, verify that all firmware versions align with the versions supported for the corresponding runtime. Apply the same best‑practice checks used during deployment to ensure the components meet the [minimum firmware requirements](/operator-nexus/howto-platform-prerequisites.md#minimum-recommended-bios-and-firmware-versions-for-nexus-cluster-runtime).
	After physical repairs are completed, verify that all firmware versions align with the versions supported for the corresponding runtime. Apply the same best-practice checks used during deployment to ensure the components meet the [minimum firmware requirements](/operator-nexus/howto-platform-prerequisites.md#minimum-recommended-bios-and-firmware-versions-for-nexus-cluster-runtime).