fix: add vector.json to highSchemaVersion exceptions

vector's schema generator emits draft 2019-09; adding exception to allow it.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: pront

src/schema-validation.jsonc

@@ -312,7 +312,8 @@
     "specif-1.1.json",
     "ctfd.json",
     "zarf.json",
-    "yamllint.json"
+    "yamllint.json",
+    "vector.json"
   ],
   "missingCatalogUrl": [
     // Below this line are subschemas that are included from other schema