Update dependency vega to v6 [SECURITY]

Author: renovate[bot]

catalog/package.json

@@ -138,7 +138,7 @@
     "use-debounce": "^9.0.4",
     "use-resize-observer": "^9.1.0",
     "uuid": "^9.0.1",
-    "vega": "^5.33.0",
+    "vega": "^6.0.0",
     "vega-embed": "^6.22.2",
     "vega-lite": "^5.14.1",
     "warning": "^4.0.3",