chore(deps): bump @angular/ssr from 20.3.5 to 20.3.6 in /demo (#397)

Bumps [@angular/ssr](https://github.com/angular/angular-cli) from 20.3.5 to 20.3.6.
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](angular/angular-cli@20.3.5...20.3.6)

---
updated-dependencies:
- dependency-name: "@angular/ssr"
  dependency-version: 20.3.6
  dependency-type: direct:production
...

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

Author: dependabot[bot]

demo/package-lock.json

@@ -20,7 +20,7 @@
     "@angular/platform-browser-dynamic": "^20.2.0-next",
     "@angular/platform-server": "^20.2.0-next",
     "@angular/router": "^20.2.0-next",
-    "@angular/ssr": "^20.2.0-next",
+    "@angular/ssr": "^20.3.6",
     "@netlify/angular-runtime": "file:..",
     "@netlify/edge-functions": "^2.19.0",
     "express": "^4.21.0",