Bump @vercel/og from 0.5.13 to 0.6.1

Bumps @vercel/og from 0.5.13 to 0.6.1.

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

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

Author: dependabot[bot]

package.json

@@ -26,7 +26,7 @@
     "@fontsource-variable/inter": "^5.0.8",
     "@mdx-js/mdx": "2.3.0",
     "@types/react": "^18.2.21",
-    "@vercel/og": "^0.5.13",
+    "@vercel/og": "^0.6.1",
     "astro": "^3.6.0",
     "astro-eslint-parser": "^0.15.0",
     "eslint-plugin-markdown": "^3.0.1",