[DOC] Update configuration documentation for remote store

[psychbot]

What do you want to do?

• Request a change to existing documentation
• Add new documentation
• Report a technical problem with the documentation
• Other

Tell us about your request. Provide a summary of the request and all versions that are affected.
Add a warning in configuring-remote-backed-storage section which tells user to not update the system repository details provided by the node attributes as it can lead to catastrophic effects.
Below are the message needs to be added in the section -

Do not perform any update operation on the remote store repository as this can lead to catastrophic effects -
1. Do not update the node attributes in opensearch.yml file on the nodes once the cluster is bootstrapped.
2. Do not update the repository information provided by node attributes via [create-repository](https://opensearch.org/docs/latest/api-reference/snapshots/create-repository/).

What other resources are available? Provide links to related issues, POCs, steps for testing, etc.

[hdhalter]

Hi @psychbot, thanks for creating this issue. Is this specific to 2.10 (and later)? Can you please create the PR and I'll have doc review and publish? Thanks.

[hdhalter]

Hi @psychbot , Is this issue closed by #5726? Thanks.