[Aikido] Fix security issue in x/crypto via minor version upgrade from 0.53.0 to 0.55.0

[aikido-autofix]

Upgrade golang.org/x/crypto to enforce source-address restrictions across all authentication callbacks, fixing permission bypass vulnerability.

✅ 1 CVE resolved by this upgrade

This PR will resolve the following CVEs:

Issue	Severity	Description
CVE-2026-56854	HIGH	[golang.org/x/crypto] Source-address restrictions in authentication callbacks were not enforced for password, keyboard-interactive, and other non-public-key authentication methods, allowing attackers to bypass IP-based access controls. The vulnerability has been fixed to validate source-address permissions across all authentication callback types.

🔗 Related Tasks

• https://theplanttokyo.atlassian.net/browse/MAINT-1569