Replace py-bcrypt with python3-bcrypt

The ceph-mgr bcrypt dependency that was supposed to be resolved by
https://review.opendev.org/c/openstack/openstack-helm-images/+/898136
is still an issue. Installing the python3-bcrypt package via apt
instead of installing py-bcrypt via pip3 resolves it.

Change-Id: If39c85775a0cee584d1b7005b8abfc71a0cf814e

ceph-daemon/Dockerfile.ubuntu_focal

@@ -44,6 +44,7 @@ RUN set -ex ;\
         curl \
         python3 \
         python3-dev \
+        python3-bcrypt \
         uuid-runtime \
         jq \
         alien \
@@ -54,7 +55,6 @@ RUN set -ex ;\
       six \
       openssl-python \
       pyopenssl \
-      py-bcrypt \
       python-openstackclient \
       python-swiftclient ;\
     curl -sSL https://dl.k8s.io/v${KUBE_VERSION}/kubernetes-client-linux-amd64.tar.gz | tar -zxv --strip-components=1 ;\