Update rule package schema for new allowed tags

Author: lcartey

schemas/rule-package.schema.json

@@ -348,7 +348,29 @@
                             "external/misra/c/2012/amendment2",
                             "external/misra/c/2012/amendment3",
                             "external/misra/c/2012/amendment4",
-                            "external/misra/c/strict"
+                            "external/misra/c/strict",
+                            "external/cert/severity/low",
+                            "external/cert/severity/medium",
+                            "external/cert/severity/high",
+                            "external/cert/likelihood/unlikely",
+                            "external/cert/likelihood/probable",
+                            "external/cert/likelihood/likely",
+                            "external/cert/remediation-cost/low",
+                            "external/cert/remediation-cost/medium",
+                            "external/cert/remediation-cost/high",
+                            "external/cert/priority/p1",
+                            "external/cert/priority/p2",
+                            "external/cert/priority/p3",
+                            "external/cert/priority/p4",
+                            "external/cert/priority/p6",
+                            "external/cert/priority/p8",
+                            "external/cert/priority/p9",
+                            "external/cert/priority/p12",
+                            "external/cert/priority/p18",
+                            "external/cert/priority/p27",
+                            "external/cert/level/l1",
+                            "external/cert/level/l2",
+                            "external/cert/level/l3"
                         ]
                     },
                     "minLength": 1