Bump vega from 5.22.1 to 5.23.0

Bumps [vega](https://github.com/vega/vega) from 5.22.1 to 5.23.0.
- [Release notes](https://github.com/vega/vega/releases)
- [Commits](vega/vega@v5.22.1...v5.23.0)

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

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

packages/vega/package.json

@@ -34,7 +34,7 @@
     "@vitessce/tooltip": "workspace:*",
     "clsx": "^1.1.1",
     "react-vega": "^7.4.4",
-    "vega": "^5.21.0",
+    "vega": "^5.23.0",
     "vega-lite": "^5.1.1",
     "vega-tooltip": "^0.27.0"
   },