switched to v2 of GH Action since v3 defaults to osx-arm64

Author: michaelcdevin

.github/workflows/pr.yml

@@ -31,7 +31,7 @@ jobs:
     #   - you manually change the value of the CACHE_NUMBER below
     # Else the existing cache is used.
     - name: Setup Miniforge
-      uses: conda-incubator/setup-miniconda@v3
+      uses: conda-incubator/setup-miniconda@v2
       with:
           miniforge-variant: Miniforge3
           miniforge-version: latest

.github/workflows/push.yml

@@ -31,7 +31,7 @@ jobs:
     #   - you manually change the value of the CACHE_NUMBER below
     # Else the existing cache is used.
     - name: Setup Miniforge
-      uses: conda-incubator/setup-miniconda@v3
+      uses: conda-incubator/setup-miniconda@v2
       with:
           miniforge-variant: Miniforge3
           miniforge-version: latest