freebsd: fix upload name for artifact zip

.github/workflows/ci.yml

@@ -450,7 +450,7 @@ jobs:
       if: startsWith(github.ref, 'refs/tags/') && matrix.do_binaries
       uses: actions/upload-artifact@v4
       with:
-        name: ${{ matrix.os }}-${{ matrix.version }}-dist
+        name: ${{ matrix.artifact_prefix }}
         path: artifacts/*
         if-no-files-found: ignore