Docker: don't fail at start if there's an existing weboob distribution and we fail to update;
Docker: don't fail at start if there's an existing weboob distribution and we fail to update;

bnjbvr/kresus,bnjbvr/kresus,ZeHiro/kresus,bnjbvr/kresus,bnjbvr/kresus,ZeHiro/kresus,ZeHiro/kresus,ZeHiro/kresus