Updates to repmgr cookbook based on staging rollout

• Increase Mixlib::Shellout timeout for repmgr commands Default timeout is 600 seconds, for clones of larger databases, this won't be enough
• Provide output after successful standby register

/cc @jtevnan

created branch 2594-increase-mixlib-shellout-timeout-for-repmgr-commands

mentioned in merge request !1757 (merged)

changed title from Increase Mixlib::Shellout timeout for repmgr commands to Updates to repmgr cookbook based on staging rollout

changed the description

closed via merge request !1757 (merged)

mentioned in commit 905045e1

mentioned in commit 31d75b99