fix(ci): correct artifact path in publish-nightly job

upload-artifact with `path: dist-bin/sentry-*` strips the dist-bin/
prefix — artifacts are stored as sentry-linux-x64.gz (not
dist-bin/sentry-linux-x64.gz). With download-artifact's merge-multiple,
files end up at artifacts/*.gz, not artifacts/dist-bin/*.gz.

Author: BYK

.github/workflows/ci.yml

@@ -361,7 +361,7 @@ jobs:
 
           # Upload the new .gz binaries and the version manifest
           gh release upload nightly \
-            artifacts/dist-bin/*.gz \
+            artifacts/*.gz \
             version.json
 
   ci-status: