build(deps): bump fastify in /docker-apps/rest-passthrough (#3554)

Bumps [fastify](https://github.com/fastify/fastify) from 4.26.2 to 4.27.0.
- [Release notes](https://github.com/fastify/fastify/releases)
- [Commits](https://github.com/fastify/fastify/compare/v4.26.2...v4.27.0)

---
updated-dependencies:
- dependency-name: fastify
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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docker-apps/rest-passthrough/package.json

@@ -15,7 +15,7 @@
     "@fastify/env": "^4.3.0",
     "@fastify/helmet": "^11.1.1",
     "@fastify/multipart": "^8.2.0",
-    "fastify": "^4.26.2"
+    "fastify": "^4.27.0"
   },
   "devDependencies": {
     "@favware/cliff-jumper": "^3.0.3",