fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-CANVG-8663318

Author: snyk-bot

package.json

@@ -145,7 +145,7 @@
     "@turf/center": "^6.5.0",
     "@turf/meta": "^6.5.0",
     "@turf/turf": "6.5.0",
-    "canvg": "3.0.10",
+    "canvg": "4.0.3",
     "echarts": "5.5.0",
     "fast-xml-parser": "^4.2.7",
     "fetch-ie8": "1.5.0",