Bump prismjs from 1.24.1 to 1.25.0 in /example

Bumps [prismjs](https://github.com/PrismJS/prism) from 1.24.1 to 1.25.0.
- [Release notes](https://github.com/PrismJS/prism/releases)
- [Changelog](https://github.com/PrismJS/prism/blob/master/CHANGELOG.md)
- [Commits](PrismJS/prism@v1.24.1...v1.25.0)

---
updated-dependencies:
- dependency-name: prismjs
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

example/package-lock.json

@@ -47,7 +47,7 @@
     "@material-ui/pickers": "^3.2.10",
     "moment": "^2.29.1",
     "object-hash": "^2.0.3",
-    "prismjs": "^1.24.0",
+    "prismjs": "^1.25.0",
     "react": "^16.8.5",
     "react-ace": "^9.2.0",
     "react-dom": "^16.8.5",