fixing versions for 3 appsec configs

Author: mhlidd

metadata/supported-configurations.json

@@ -251,15 +251,15 @@
     ],
     "DD_APPSEC_HTTP_BLOCKED_TEMPLATE_HTML": [
       {
-        "version": "B",
+        "version": "C",
         "type": "string",
         "default": "",
         "aliases": []
       }
     ],
     "DD_APPSEC_HTTP_BLOCKED_TEMPLATE_JSON": [
       {
-        "version": "B",
+        "version": "C",
         "type": "string",
         "default": "",
         "aliases": []
@@ -347,7 +347,7 @@
     ],
     "DD_APPSEC_RULES": [
       {
-        "version": "B",
+        "version": "C",
         "type": "string",
         "default": "",
         "aliases": []