build: fix issue with git shell on windows (#6653)
build: fix issue with git shell on windows (#6653)

Git shell extraploate the /bin/sh to it's executable name on windows, before calling Docker, which of course resulted in : "Docker run (no such file or directory) error".
Writing //bin/sh permits to avoid the error.
openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server