chore(deps-dev): bump @pact-foundation/pact in /web (#5383)

Bumps [@pact-foundation/pact](https://github.com/pact-foundation/pact-js) from 12.5.2 to 15.0.1.
- [Release notes](https://github.com/pact-foundation/pact-js/releases)
- [Changelog](https://github.com/pact-foundation/pact-js/blob/master/CHANGELOG.md)
- [Commits](pact-foundation/pact-js@v12.5.2...v15.0.1)

---
updated-dependencies:
- dependency-name: "@pact-foundation/pact"
  dependency-version: 15.0.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

web/package.json

@@ -29,7 +29,7 @@
     "@babel/preset-env": "^7.28.0",
     "@babel/preset-react": "^7.27.1",
     "@babel/preset-typescript": "^7.27.1",
-    "@pact-foundation/pact": "^12.5.2",
+    "@pact-foundation/pact": "^15.0.1",
     "@pact-foundation/pact-node": "^10.18.0",
     "@pmmmwh/react-refresh-webpack-plugin": "^0.6.1",
     "@testing-library/jest-dom": "^6.6.3",