Upgrade setup-miniconda

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
       with:
         submodules: true
 
-    - uses: conda-incubator/setup-miniconda@v2
+    - uses: conda-incubator/setup-miniconda@v3
       with:
         auto-update-conda: true
         python-version: ${{ matrix.python-version }}