Update .github/actions/setup-build/action.yml

Author: fendor

.github/actions/setup-build/action.yml

@@ -25,6 +25,7 @@ runs:
   steps:
     - name: Init submodules
       run: git submodule update --init
+      shell: bash
 
     - name: Workaround runner image issue
       if: runner.os == 'Linux'