Add Yamcs 5.12.7 fix references for GHSA-2g95

Author: cookesan

advisories/github-reviewed/2026/05/GHSA-2g95-6x5q-xjwj/GHSA-2g95-6x5q-xjwj.json

@@ -40,6 +40,14 @@
       "type": "WEB",
       "url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-2g95-6x5q-xjwj"
     },
+    {
+      "type": "WEB",
+      "url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/yamcs/yamcs/commit/3c550348f866af4675d2ba4a51d8d12b7c7c6011"
+    },
     {
       "type": "PACKAGE",
       "url": "https://github.com/yamcs/yamcs"