Bump fastify-plugin from 3.0.1 to 4.0.0 (#101)

Bumps [fastify-plugin](https://github.com/fastify/fastify-plugin) from 3.0.1 to 4.0.0.
- [Release notes](https://github.com/fastify/fastify-plugin/releases)
- [Commits](fastify/fastify-plugin@v3.0.1...v4.0.0)

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

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

package.json

@@ -38,7 +38,7 @@
   "dependencies": {
     "@fastify/error": "^3.0.0",
     "basic-auth": "^2.0.1",
-    "fastify-plugin": "^3.0.0"
+    "fastify-plugin": "^4.0.0"
   },
   "publishConfig": {
     "access": "public"