Change shell to pwsh

Author: diegorusso

.github/workflows/reusable-windows-msi.yml

@@ -30,6 +30,6 @@ jobs:
       with:
         persist-credentials: false
     - name: Build CPython installer
-      shell: cmd
+      shell: pwsh
       run: ./Tools/msi/build.bat --doc -${{ inputs.arch }}
 

.github/workflows/reusable-windows.yml

@@ -40,7 +40,7 @@ jobs:
         -e -d -v
         -p ${{ inputs.arch }}
         ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}
-      shell: cmd
+      shell: pwsh
     - name: Display build info
       run: .\\python.bat -m test.pythoninfo
     - name: Tests
@@ -49,4 +49,4 @@ jobs:
         -p ${{ inputs.arch }}
         -d -q --fast-ci
         ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}
-      shell: cmd
+      shell: pwsh