chore: Bump vulnerable deps (#48387)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Chores**
  * Updated Next.js, PostCSS, and tar package versions.
  * Added the required TypeScript native tooling where needed.
* Refined package configuration and dependency ordering across the
project.
  * Removed an unused empty dependency configuration.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

apps/docs/package.json

@@ -102,7 +102,7 @@
     "mdast-util-to-string": "^3.1.1",
     "micromark-extension-gfm": "^2.0.3",
     "micromark-extension-mdxjs": "^1.0.0",
-    "next": "^15.5.18",
+    "next": "^15.5.21",
     "next-mdx-remote-client": "^1.1.7",
     "next-plugin-yaml": "^1.0.1",
     "next-themes": "catalog:",
@@ -157,6 +157,7 @@
     "@types/react-copy-to-clipboard": "^5.0.4",
     "@types/react-dom": "catalog:",
     "@types/unist": "^2.0.6",
+    "@typescript/native": "catalog:",
     "amaro": "^1.1.5",
     "api-types": "workspace:*",
     "cheerio": "^1.0.0-rc.12",
@@ -175,11 +176,10 @@
     "slugify": "^1.6.6",
     "smol-toml": "^1.3.1",
     "tailwindcss": "catalog:",
-    "tar": "^7.5.19",
+    "tar": "^7.5.21",
     "tsconfig": "workspace:*",
     "tsx": "catalog:",
     "twoslash": "^0.3.1",
-    "@typescript/native": "catalog:",
     "typescript": "catalog:",
     "unist-util-visit-parents": "5.1.3",
     "vite": "catalog:",