Call bash on bin/deploy in github actions (alshedivat#625)

Author: alshedivat

.github/workflows/deploy.yml

@@ -46,6 +46,6 @@ jobs:
         fi
         echo "::set-output name=DEPLOY_BRANCH::gh-pages"
     - name: Deploy website 
-      run:  yes | bin/deploy --verbose ${{ steps.setup.outputs.NO_PUSH }}
+      run:  yes | bash bin/deploy --verbose ${{ steps.setup.outputs.NO_PUSH }}
                     --src ${{ steps.setup.outputs.SRC_BRANCH }} 
                     --deploy ${{ steps.setup.outputs.DEPLOY_BRANCH }}