Apply suggestion from @Copilot

Co-authored-by: Copilot <[email protected]>
Signed-off-by: Aviv Keller <[email protected]>

Author: avivkeller

packages/rehype-shiki/package.json

@@ -6,6 +6,7 @@
     "./*": "./src/*.mjs"
   },
   "repository": {
+    "type": "git",
     "url": "https://github.com/nodejs/nodejs.org"
   },
   "scripts": {