fix(security): Ignore Go stdlib CVEs in oven/bun base image

Add CVE-2025-68121 (crypto/tls session resumption) and CVE-2025-61730
(TLS 1.3 handshake) to .trivyignore. These are Go stdlib vulnerabilities
in the oven/bun Docker base image and are not exploitable in this
Node.js/Bun application.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Strehk

.trivyignore

@@ -16,3 +16,5 @@ CVE-2025-68973
 # Go stdlib vulnerabilities from oven/bun base image - not exploitable in Node.js/Bun app
 CVE-2025-61726
 CVE-2025-61728
+CVE-2025-68121
+CVE-2025-61730