chore(deps): pin dependency @types/node to 20.12.12 (#6)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[@types/node](https://togithub.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node)
([source](https://togithub.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node))
| devDependencies | pin | [`^20.12.12` ->
`20.12.12`](https://renovatebot.com/diffs/npm/@types%2fnode/20.12.12/20.12.12)
|

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package.json

@@ -38,7 +38,7 @@
 		"@eslint/js": "9.3.0",
 		"@release-it/conventional-changelog": "8.0.1",
 		"@types/eslint-plugin-markdown": "2.0.2",
-		"@types/node": "^20.12.12",
+		"@types/node": "20.12.12",
 		"@vitest/coverage-v8": "1.6.0",
 		"console-fail-test": "0.2.3",
 		"cspell": "8.8.3",