Update deployment rolling

[Creativeklvn]

How to update a running Deployment to a new version using rolling updates

This PR adds a step-by-step guide on updating a running Kubernetes Deployment to a new version using rolling updates, without causing service interruption.

Includes

• Checking the current Deployment
• Updating the Deployment using kubectl set image
• Monitoring rollout progress
• Verifying the update
• Rolling back if needed
• Links to Pods and rolling updates for further reading

This guide ensures that users can safely perform updates while keeping applications available.

#54120

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: Creativeklvn / name: Kelvin Uneze (14d7fb2, 59e47d3, 7e3f5ba, a873e08)

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[lmktfy]

/hold

@Creativeklvn are you sure that this is the change that you wanted to suggest? It seems like a mixture of several unrelated improvements.

[lmktfy]

This seems really unrelated to the change that the PR's title suggest we'd see.

[Creativeklvn]

My apologies, I am only starting to wrap my head around git. I'll properly create new branches and open a new PR.