chore: release 5.0.0-alpha.20 (#161)

Add release-as override to force version sync with Fable.

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Co-authored-by: Claude Opus 4.5 <[email protected]>

Author: dbrattli

release-please-config.json

@@ -3,6 +3,7 @@
   "packages": {
     ".": {
       "release-type": "simple",
+      "release-as": "5.0.0-alpha.20",
       "bump-minor-pre-major": true,
       "bump-patch-for-minor-pre-major": true,
       "include-component-in-tag": false,