chore(deps): bump vega from 5.32.0 to 6.2.0

Bumps [vega](https://github.com/vega/vega) from 5.32.0 to 6.2.0.
- [Release notes](https://github.com/vega/vega/releases)
- [Commits](vega/vega@v5.32.0...v6.2.0)

---
updated-dependencies:
- dependency-name: vega
  dependency-version: 6.2.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -9,7 +9,7 @@
     "@heavyai/connector": "^7.0.0",
     "apache-arrow": "^19.0.0",
     "gh-pages": "^6.3.0",
-    "vega": "^5.32.0",
+    "vega": "^6.2.0",
     "vega-transform-omnisci-core": "^0.0.12"
   },
   "scripts": {