Update dependency @types/node to v20.12.6 (#623)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[@types/node](https://togithub.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node)
([source](https://togithub.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node))
| [`20.12.5` ->
`20.12.6`](https://renovatebot.com/diffs/npm/@types%2fnode/20.12.5/20.12.6)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/@types%2fnode/20.12.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@types%2fnode/20.12.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@types%2fnode/20.12.5/20.12.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@types%2fnode/20.12.5/20.12.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

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website/agb/package-lock.json

@@ -861,9 +861,9 @@
       "dev": true
     },
     "node_modules/@types/node": {
-      "version": "20.12.5",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.12.5.tgz",
-      "integrity": "sha512-BD+BjQ9LS/D8ST9p5uqBxghlN+S42iuNxjsUGjeZobe/ciXzk2qb1B6IXc6AnRLS+yFJRpN2IPEHMzwspfDJNw==",
+      "version": "20.12.6",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.12.6.tgz",
+      "integrity": "sha512-3KurE8taB8GCvZBPngVbp0lk5CKi8M9f9k1rsADh0Evdz5SzJ+Q+Hx9uHoFGsLnLnd1xmkDQr2hVhlA0Mn0lKQ==",
       "dev": true,
       "dependencies": {
         "undici-types": "~5.26.4"