Update miniconda setup version

Author: rhpvorderman

.github/workflows/ci.yml

@@ -142,7 +142,7 @@ jobs:
         with:
           submodules: recursive
       - name: Install miniconda.
-        uses: conda-incubator/setup-miniconda@v2.0.1 # https://github.com/conda-incubator/setup-miniconda.
+        uses: conda-incubator/setup-miniconda@v3 # https://github.com/conda-incubator/setup-miniconda.
         with:
           channels: conda-forge,defaults
       - name: Install requirements (universal)