feat: update dumi-theme-antv to ^0.8.2 (#7281)

Agent-Logs-Url: https://github.com/antvis/G2/sessions/5576d955-be23-47bb-a808-f83d7fb5a749

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: interstellarmt <178904023+interstellarmt@users.noreply.github.com>

Author: Copilot

site/package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "@ant-design/icons": "^4.8.3",
     "@antv/data-set": "^0.11.8",
-    "@antv/dumi-theme-antv": "^0.8.1",
+    "@antv/dumi-theme-antv": "^0.8.2",
     "@antv/g-lottie-player": "^1.0.32",
     "@antv/g-pattern": "^2.0.32",
     "@antv/g-plugin-3d": "^2.0.41",