[Aikido] Fix critical issue in h3 via minor version upgrade from 1.15.1 to 1.15.5

[aikido-autofix]

This pull request addresses identified vulnerabilities and implements the necessary fixes to strengthen our security posture. Please review and approve so we can merge these changes promptly and reduce potential risk.

Any issues, please ping me, Alan Sower.

Thanks Team

Patches critical HTTP request smuggling vulnerability enabling potential request manipulation and bypassing security controls in H3 framework.

✅ Code not affected by breaking changes.

No breaking changes affect this codebase. The affected methods readBody(event) and readRawBody(event) are not used anywhere in the codebase.

All breaking changes by upgrading h3 from version 1.15.1 to 1.15.5 (CHANGELOG)

Version	Description
1.15.5	Fixed case-sensitive Transfer-Encoding check in readBody(event) and readRawBody(event) that could cause request bodies to be ignored with certain header formats, potentially breaking code that relied on the previous (non-compliant) behavior

✅ 1 CVE resolved by this upgrade, including 1 critical 🚨 CVE

This PR will resolve the following CVEs:

Issue	Severity	Description
CVE-2026-23527	🚨 CRITICAL	[h3] HTTP Request Smuggling vulnerability allows attackers to bypass request parsing checks by using case-variant Transfer-Encoding headers, potentially enabling manipulation of HTTP request boundaries and server-side request processing.

🔗 Related Tasks

• https://github.com/vechain/security/issues/404