fix(deps): update dependency sharp to ^0.34.0

Author: renovate[bot]

package.json

@@ -38,7 +38,7 @@
     "prettier-plugin-astro": "^0.14.0",
     "rehype-autolink-headings": "^7.1.0",
     "sass": "^1.77.2",
-    "sharp": "^0.33.2",
+    "sharp": "^0.34.0",
     "shiki": "^1.1.7",
     "starlight-blog": "^0.15.0",
     "starlight-links-validator": "^0.13.0"