fix: remove versioning strategy from release-please config

Custom version format (5.0.0-alpha.21.X) requires manual version management.
The manifest should be updated manually before releases.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: dbrattli

release-please-config.json

@@ -3,7 +3,6 @@
   "packages": {
     ".": {
       "release-type": "simple",
-      "versioning": "prerelease",
       "include-component-in-tag": false,
       "include-v-in-tag": true,
       "changelog-path": "CHANGELOG.md"