increase timeout for manager_expire_test to allow the test to pass on a machine under load
increase timeout for manager_expire_test to allow the test to pass on a machine under load

mjs/juju,marcmolla/juju,ericsnowcurrently/juju,AdamIsrael/juju,waigani/juju,mikemccracken/juju,mjs/juju,ericsnowcurrently/juju,mikemccracken/juju,AdamIsrael/juju,ericsnowcurrently/juju,alesstimec/juju,mjs/juju,frankban/juju,frankban/juju,frankban/juju,reedobrien/juju,mjs/juju,mjs/juju,anastasiamac/juju,waigani/juju,marcmolla/juju,bac/juju,bac/juju,mikemccracken/juju,alesstimec/juju,mjs/juju,AdamIsrael/juju,alesstimec/juju,reedobrien/juju,bac/juju,anastasiamac/juju,bac/juju,AdamIsrael/juju,marcmolla/juju,mjs/juju,reedobrien/juju,alesstimec/juju,marcmolla/juju,mikemccracken/juju,waigani/juju,ericsnowcurrently/juju,frankban/juju,mikemccracken/juju,reedobrien/juju,waigani/juju,frankban/juju,ericsnowcurrently/juju,anastasiamac/juju,anastasiamac/juju,reedobrien/juju,alesstimec/juju,marcmolla/juju,bac/juju,anastasiamac/juju