chore(deps): bump js-yaml from 4.1.1 to 4.2.0 in /sites/upsun

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 4.1.1 to 4.2.0.
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodeca/js-yaml/commits)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 4.2.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

sites/upsun/package-lock.json

@@ -43,7 +43,7 @@
     "axios": "^1.15.0",
     "express": "^4.22.1",
     "fs-extra": "^11.1.1",
-    "js-yaml": "^4.1.1",
+    "js-yaml": "^4.2.0",
     "mermaid": "^11.10.0",
     "octokit": "^3.1.2",
     "platformsh-config": "^2.4.1",