build(website): move the update-versions script to run on prerelease instead of postrelease

Author: tkajtoch

packages/website/package.json

@@ -15,7 +15,7 @@
     "write-heading-ids": "docusaurus write-heading-ids",
     "typecheck": "tsc",
     "spellcheck": "cspell ./docs",
-    "postrelease": "node ./scripts/update-versions.js"
+    "prerelease": "node ./scripts/update-versions.js"
   },
   "dependencies": {
     "@docusaurus/core": "^3.7.0",