fix: Add CVE-2026-27171 to the list of suppressed vulnerabilities in security scan (#6553)

.release/security-scan.hcl

@@ -34,7 +34,12 @@ container {
 				# iputils@20240905-r0 https://nvd.nist.gov/vuln/detail/CVE-2025-48964
 				#
 				# Boundary does not utilize ping in iputils.
-				"CVE-2025-48964"
+				"CVE-2025-48964",
+
+                # zlib@1.3.1-r2 https://nvd.nist.gov/vuln/detail/CVE-2026-27171
+                #
+                # There's no base image fix for this yet.
+                "CVE-2026-27171"
 			]
 		}
 	}