Add PANOS-12.1 addressed issues

web/data/products.json

@@ -6,7 +6,16 @@
         "known": []
       },
       "12.1": {
-        "addressed": [],
+        "addressed": [
+          "12.1.2_2026-03-16.md",
+          "12.1.3_2026-03-16.md",
+          "12.1.3-h1_2026-03-16.md",
+          "12.1.3-h3_2026-03-16.md",
+          "12.1.4_2026-03-16.md",
+          "12.1.4-h2_2026-03-16.md",
+          "12.1.4-h3_2026-03-16.md",
+          "12.1.5_2026-03-16.md"
+        ],
         "known": []
       }
     },