Bump express-session from 1.13.0 to 1.17.3

Bumps [express-session](https://github.com/expressjs/session) from 1.13.0 to 1.17.3.
- [Release notes](https://github.com/expressjs/session/releases/tag/v1.17.3)
- [Changelog](https://github.com/expressjs/session/blob/master/HISTORY.md)
- [Commits](expressjs/session@v1.13.0...v1.17.3)

package.json

@@ -29,7 +29,7 @@
     "del": "^6.0.0",
     "dotenv": "^10.0.0",
     "express": "^4.18.2",
-    "express-session": "^1.13.0",
+    "express-session": "^1.17.3",
     "fancy-log": "^1.3.3",
     "fs-extra": "^10.0.1",
     "govuk-frontend": "^4.4.0",