Update setup-miniconda hook

Author: oshadura

.github/workflows/ci.yaml

@@ -21,11 +21,10 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }} (Miniconda)
-      uses: goanpeca/setup-miniconda@v1
+      uses: conda-incubator/setup-miniconda@v2
       with:
         auto-update-conda: true
         python-version: ${{ matrix.python-version }}
-        channels: conda-forge
 
     - name: Conda install dependencies
       run: |