Bump the default group across 1 directory with 2 updates

Bumps the default group with 2 updates in the / directory: [starlight-heading-badges](https://github.com/HiDeoo/starlight-heading-badges/tree/HEAD/packages/starlight-heading-badges) and [starlight-links-validator](https://github.com/HiDeoo/starlight-links-validator/tree/HEAD/packages/starlight-links-validator).


Updates `starlight-heading-badges` from 0.5.0 to 0.6.0
- [Release notes](https://github.com/HiDeoo/starlight-heading-badges/releases)
- [Changelog](https://github.com/HiDeoo/starlight-heading-badges/blob/main/packages/starlight-heading-badges/CHANGELOG.md)
- [Commits](https://github.com/HiDeoo/starlight-heading-badges/commits/[email protected]/packages/starlight-heading-badges)

Updates `starlight-links-validator` from 0.16.0 to 0.17.2
- [Release notes](https://github.com/HiDeoo/starlight-links-validator/releases)
- [Changelog](https://github.com/HiDeoo/starlight-links-validator/blob/main/packages/starlight-links-validator/CHANGELOG.md)
- [Commits](https://github.com/HiDeoo/starlight-links-validator/commits/[email protected]/packages/starlight-links-validator)

---
updated-dependencies:
- dependency-name: starlight-heading-badges
  dependency-version: 0.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: default
- dependency-name: starlight-links-validator
  dependency-version: 0.17.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: default
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -30,8 +30,8 @@
     "rehype-mathjax": "^7.1.0",
     "remark-math": "^6.0.0",
     "sharp": "^0.34.3",
-    "starlight-heading-badges": "^0.5.0",
-    "starlight-links-validator": "^0.16.0",
+    "starlight-heading-badges": "^0.6.0",
+    "starlight-links-validator": "^0.17.2",
     "starlight-showcases": "^0.3.0",
     "starlight-sidebar-topics": "^0.6.0",
     "tailwindcss": "^4.1.13",