Set cross version to 0.2.5

The default is cross 0.2.4 which was created in Juli of 2022 [0]. The
patch to add libmemstat [1] was created in December of 2022, so we need
a newer version of cross.

[0] https://github.com/cross-rs/cross/pkgs/container/x86_64-unknown-freebsd/28076628?tag=0.2.4
[1] cross-rs/cross#1166

.github/workflows/release.yml

@@ -82,6 +82,7 @@ jobs:
           target: ${{ matrix.job.target }}
           nif-version: ${{ matrix.nif }}
           use-cross: ${{ matrix.job.use-cross }}
+          cross-version: 0.2.5
           project-dir: "native/explorer"
 
       - name: Artifact upload