feat: update curl commands to use new port 31437.

[catundercar]

Proposed changes

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[github-actions]

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[catundercar]

I have hereby read the F5 CLA and agree to its terms

[ADubhlaoich]

Generally LGTM, though it's the engineering team's call on correctness acceptance.

[sjberman]

The original ports work for me when going through the guide. The updated ports do not.

The purpose of the kind config at the start is to forward the 31437 port to your 8080 host port, so you can access locally on 8080.

[catundercar]

sorry, I don't run through kind, so I can't access 8080.