build(craft): Publish 8.14.x releases under v8.14-legacy npm dist-tag

Without an explicit distTag, craft calls `npm publish` with the default
`latest` tag. npm rejects that when the newly published version (8.14.2)
is lower than the current `latest` on the registry (8.18.0), which broke
the 8.14.2 release run.

Pin the 8.14 line to `v8.14-legacy` so backports on this branch publish
without touching `latest`. Consumers on the 8.14 line install with
`npm i @sentry/react-native@v8.14-legacy` (or `@8.14.2` directly).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: alwx

.craft.yml

@@ -3,6 +3,7 @@ changelogPolicy: auto
 preReleaseCommand: bash scripts/craft-pre-release.sh
 targets:
   - name: npm
+    distTag: v8.14-legacy
   - name: github
   - name: registry
     sdks: