fix: update package-json-validator (#456)

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## PR Checklist

-   [x] Addresses an existing open issue: fixes #250 
- [x] That issue was marked as [`status: accepting
prs`](https://github.com/JoshuaKGoldberg/eslint-plugin-package-json/issues?q=is%3Aopen+is%3Aissue+label%3A%22status%3A+accepting+prs%22)
- [x] Steps in
[CONTRIBUTING.md](https://github.com/JoshuaKGoldberg/eslint-plugin-package-json/blob/main/.github/CONTRIBUTING.md)
were taken

## Overview

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package.json

@@ -60,7 +60,7 @@
 	"dependencies": {
 		"detect-indent": "6.1.0",
 		"detect-newline": "3.1.0",
-		"package-json-validator": "^0.6.3",
+		"package-json-validator": "^0.6.5",
 		"semver": "^7.5.4",
 		"sort-object-keys": "^1.1.3",
 		"sort-package-json": "^1.57.0",