Bump prettier from 3.6.2 to 3.7.3 in /python/web (#1587)

Bumps [prettier](https://github.com/prettier/prettier) from 3.6.2 to 3.7.3.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prettier/prettier/compare/3.6.2...3.7.3)

---
updated-dependencies:
- dependency-name: prettier
  dependency-version: 3.7.3
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

python/web/package.json

@@ -1,6 +1,6 @@
 {
   "devDependencies": {
-    "prettier": "3.6.2",
+    "prettier": "3.7.3",
     "stylelint": "^16.26.0",
     "stylelint-config-standard": "^39.0.1"
   }