Fix release CI job (#936)

Apparently `pattern: *` is not valid syntax. I think we can do without
patterns because we want to publish all artifacts anyway.

Author: bnoordhuis

.github/workflows/release.yml

@@ -133,7 +133,6 @@ jobs:
       - name: get assets
         uses: actions/download-artifact@v4
         with:
-          pattern: *
           path: build
           merge-multiple: true
       - run: ls -R build