Bump canvg in /web (#773)

Bumps [canvg](https://github.com/canvg/canvg) to 4.0.3 and updates ancestor dependency . These dependencies need to be updated together.


Updates `canvg` from 4.0.2 to 4.0.3
- [Release notes](https://github.com/canvg/canvg/releases)
- [Changelog](https://github.com/canvg/canvg/blob/master/CHANGELOG.md)
- [Commits](https://github.com/canvg/canvg/compare/v4.0.2...v4.0.3)

Updates `canvg` from 3.0.10 to 3.0.11
- [Release notes](https://github.com/canvg/canvg/releases)
- [Changelog](https://github.com/canvg/canvg/blob/master/CHANGELOG.md)
- [Commits](https://github.com/canvg/canvg/compare/v4.0.2...v4.0.3)

---
updated-dependencies:
- dependency-name: canvg
  dependency-version: 4.0.3
  dependency-type: direct:production
- dependency-name: canvg
  dependency-version: 3.0.11
  dependency-type: indirect
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

web/package.json

@@ -53,7 +53,7 @@
     "activitypub-types": "^1.1.0",
     "autoprefixer": "^10.4.17",
     "canvas-confetti": "^1.9.3",
-    "canvg": "^4.0.1",
+    "canvg": "^4.0.3",
     "chart.js": "^4.4.6",
     "chartjs-plugin-crosshair": "^2.0.0",
     "chartjs-plugin-zoom": "^2.1.0",