Trying to change to zsh shell

Author: kevinwang5658

.github/workflows/run-all-unit-tests.yaml

@@ -37,9 +37,10 @@ jobs:
         if: runner.os == 'macOS'
         shell: zsh {0}
         run: |
-          sudo chsh -s $(which zsh) $USER
+#          sudo chsh -s $(which zsh) $USER
           echo $0
-          echo $ZSH_NAME $ZSH_VERSION
+          echo $ZSH_NAME $ZSH_VERSION   
+          export SHELL=/bin/zsh
           npm run test -- ./test/shell --no-file-parallelism --silent=passed-only
 
       - name: Run tests (Linux)