chore(deps): Bump ws from 8.20.0 to 8.20.1

Bumps [ws](https://github.com/websockets/ws) from 8.20.0 to 8.20.1.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](https://github.com/websockets/ws/compare/8.20.0...8.20.1)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 8.20.1
  dependency-type: direct:production
...

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

plugins/signals-backend/package.json

@@ -44,7 +44,7 @@
     "@backstage/types": "workspace:^",
     "express": "^4.22.0",
     "express-promise-router": "^4.1.0",
-    "ws": "^8.18.0"
+    "ws": "^8.20.1"
   },
   "devDependencies": {
     "@backstage/backend-defaults": "workspace:^",