chore(deps): bump @vercel/og from 0.6.2 to 0.11.1

Bumps @vercel/og from 0.6.2 to 0.11.1.

---
updated-dependencies:
- dependency-name: "@vercel/og"
  dependency-version: 0.11.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -33,7 +33,7 @@
     "@tailwindcss/postcss": "4.3.1",
     "@types/react": "^19.2.17",
     "@types/unist": "^3.0.3",
-    "@vercel/og": "^0.6.2",
+    "@vercel/og": "^0.11.1",
     "astro": "^6.4.6",
     "astro-eslint-parser": "^1.4.0",
     "eslint-plugin-markdown": "^5.0.0",