bump up checkout action version

Author: hobu

.github/workflows/release.yml

@@ -22,7 +22,7 @@ jobs:
       fail-fast: true
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Setup micromamba
       uses: conda-incubator/setup-miniconda@v3
       with: