chore(deps): Bump @types/node from 20.4.6 to 20.8.0 (#137)

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 20.4.6 to 20.8.0.
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package.json

@@ -52,7 +52,7 @@
     "@relaycorp/shared-config": "^1.9.1",
     "@shelf/jest-mongodb": "^4.1.7",
     "@types/jest": "^29.5.3",
-    "@types/node": "^20.3.3",
+    "@types/node": "^20.8.0",
     "@types/split2": "^4.2.1",
     "del-cli": "^5.1.0",
     "jest": "^29.6.1",