fixed macos install 3. modified workflow.

Author: yatisht

.github/workflows/cmake.yml

@@ -29,7 +29,7 @@ jobs:
     steps:
     - uses: actions/checkout@master
     - name: install pre-reqs and build
-      run:  |
+      run: |
       curl -fsSL https://repo.anaconda.com/miniconda/Miniconda3-latest-MacOSX-arm64.sh -o miniconda.sh  
       bash miniconda.sh -b -p "$HOME/miniconda" 
       rm miniconda.sh