Bump @polar-sh/sdk from 0.10.0 to 0.16.0

Bumps [@polar-sh/sdk](https://github.com/polarsource/polar-js) from 0.10.0 to 0.16.0.
- [Release notes](https://github.com/polarsource/polar-js/releases)
- [Changelog](https://github.com/polarsource/polar-js/blob/main/RELEASES.md)
- [Commits](polarsource/polar-js@v0.10.0...v0.16.0)

---
updated-dependencies:
- dependency-name: "@polar-sh/sdk"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

landing/package.json

@@ -17,7 +17,7 @@
     "@astrojs/sitemap": "^3.2.1",
     "@astrojs/tailwind": "^5.1.2",
     "@astrojs/vercel": "^7.8.2",
-    "@polar-sh/sdk": "^0.10.0",
+    "@polar-sh/sdk": "^0.16.0",
     "astro": "^4.16.1",
     "shepherd.js": "workspace:*",
     "tailwindcss": "^3.4.11",