Bump react-pdf from 7.7.1 to 7.7.3 in /web-app (#3337)

Bumps [react-pdf](https://github.com/wojtekmaj/react-pdf/tree/HEAD/packages/react-pdf) from 7.7.1 to 7.7.3.
- [Release notes](https://github.com/wojtekmaj/react-pdf/releases)
- [Commits](https://github.com/wojtekmaj/react-pdf/commits/v7.7.3/packages/react-pdf)

---
updated-dependencies:
- dependency-name: react-pdf
  dependency-type: direct:production
...

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web-app/package.json

@@ -19,7 +19,7 @@
     "react-dom": "^18.3.1",
     "react-dropzone": "^14.2.3",
     "react-markdown": "8.0.7",
-    "react-pdf": "7.7.1",
+    "react-pdf": "7.7.3",
     "react-redux": "^8.1.3",
     "react-router-dom": "6.23.0",
     "react-use-websocket": "^4.8.1",