redefine entrypoint argument

.github/workflows/main.yml

@@ -8,8 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     container:
       image: lennartwittkuhn/datalad:0.17.6
-      with:
-        entrypoint: /bin/sh
+      options: --entrypoint /bin/sh
     steps:
       - name: Install and Build
         run: |