Update yaml-register-worker-clusters.mdx

[adrianmoisey]

Fix script and remove unused parameters

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• Documentation Update

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[narmidm]

There is one commit incorrectly signed off. This means that the author of this commit failed to include a Signed-off-by line in the commit message.

To avoid having PRs blocked in the future, always include Signed-off-by: Author Name [email protected] in every commit message. You can also do this automatically by using the -s flag (i.e., git commit -s).

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