fix: code block typo in deployment.md

[dkarczmarski]

fix a small inconsistency.

one of the code blocks for a command output has a different color (red).
this is because it is a code block of type 'ini',
but it should not be.

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[dipesh-rawat]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 8ef0112db7045054102909f47bd125b08a2f94cf

[stmcginnis]

Could also use txt, but I think this is effectively the same.

/lgtm

[dipesh-rawat]

/approve

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