Fix: socket connect hang on heavy loads

Fix: socket connect hang on heavy loads

We need to perform both connect and sending registration message before
doing the next connect otherwise we may reach unix socket connect queue
max limits and block on the 2nd connect while the session daemon is
awaiting the first connect registration message.

This happens in scenarios where unix socket connect queues are nearly
full.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>