build(deps-dev): bump @types/node from 14.14.42 to 15.0.0

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 14.14.42 to 15.0.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

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

package.json

@@ -32,7 +32,7 @@
   "homepage": "https://github.com/fastify/fastify-reply-from#readme",
   "devDependencies": {
     "@sinonjs/fake-timers": "^7.0.0",
-    "@types/node": "^14.14.2",
+    "@types/node": "^15.0.0",
     "@types/tap": "^15.0.0",
     "fastify": "^3.7.0",
     "fastify-formbody": "^5.0.0",