Bump the nextra group with 2 updates

Bumps the nextra group with 2 updates: [nextra](https://github.com/shuding/nextra) and [nextra-theme-docs](https://github.com/shuding/nextra).


Updates `nextra` from 4.2.4 to 4.2.17
- [Release notes](https://github.com/shuding/nextra/releases)
- [Commits](https://github.com/shuding/nextra/compare/nextra@4.2.4...nextra@4.2.17)

Updates `nextra-theme-docs` from 4.2.4 to 4.2.17
- [Release notes](https://github.com/shuding/nextra/releases)
- [Commits](https://github.com/shuding/nextra/compare/nextra-theme-docs@4.2.4...nextra-theme-docs@4.2.17)

---
updated-dependencies:
- dependency-name: nextra
  dependency-version: 4.2.17
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: nextra
- dependency-name: nextra-theme-docs
  dependency-version: 4.2.17
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: nextra
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

docs/cache-handler-docs/package.json

@@ -12,8 +12,8 @@
   },
   "dependencies": {
     "next": "15.1.6",
-    "nextra": "4.2.4",
-    "nextra-theme-docs": "4.2.4",
+    "nextra": "4.2.17",
+    "nextra-theme-docs": "4.2.17",
     "react": "19.0.0",
     "react-dom": "19.0.0"
   },