fix(deps): update dependency echarts to v6

Author: renovate[bot]

package.json

@@ -12,7 +12,7 @@
     "@element-plus/icons-vue": "2.3.2",
     "algoliasearch": "4.25.2",
     "axios": "1.12.2",
-    "echarts": "5.6.0",
+    "echarts": "6.0.0",
     "echarts-wordcloud": "2.1.0",
     "element-plus": "2.11.3",
     "js-yaml": "4.1.0",