Install zsh in pnpm version update workflow (#96) (#99)

Author: mattfsourcecode

.github/workflows/update-pnpm.yml

@@ -20,6 +20,9 @@ jobs:
       - name: Check out the repository
         uses: actions/checkout@v3
 
+      - name: Install zsh
+        run: sudo apt-get update && sudo apt-get install -y zsh
+
       - name: Install Corepack
         run: npm install -g corepack