update publish-docs.yml

.github/workflows/publish-docs.yml

@@ -20,7 +20,7 @@ jobs:
         # fetch all tags so `versioneer` can properly determine current version
         fetch-depth: 0
     - name: Set up Python
-      uses: conda-incubator/setup-miniconda@v2
+      uses: conda-incubator/setup-miniconda@v3
       with:
         python-version: '3.9'
         miniforge-variant: Mambaforge