pkg/ipam: relax wait for address expiration timer
pkg/ipam: relax wait for address expiration timer

Similar to previous commits, this prevents a flake caused by jittery
OS timers in Vagrant VMs during test execution.

Signed-off-by: Timo Beckers <98c2d5a1e48c998bd9ba9dbc53d6857beae1c9bd@isovalent.com>

cilium/cilium,cilium/cilium,cilium/cilium,cilium/cilium,cilium/cilium