fix(node): fix vhosts for adminAPI #32488

[gzliudan]

Proposed changes

Ref: ethereum#32488

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• Tested the backwards compatibility.
• Tested with XDC nodes running this version co-exist with those running the previous version.
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[Copilot]

Pull request overview

This PR fixes a bug in the adminAPI's StartHTTP method where the vhosts parameter was incorrectly processing the host variable instead of the vhosts variable when parsing virtual hosts.

Changes:

• Fixed variable reference in vhosts parsing loop from *host to *vhosts

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