Bug 32269: Prevent Circulation.t to fail randomly

Bug 32269: Prevent Circulation.t to fail randomly

Highlighted by Bug 32030: fix test builder for boolean

    #   Failed test 'Checkouts with auto-renewal can be renewed earliest on due date if no renewalbefore'
    #   at t/db_dependent/Circulation.t line 343.
    #          got: '2022-11-18T14:16:12'
    #     expected: '2022-12-02T00:00:00'

    #   Failed test 'Checkouts with auto-renewal can be renewed earliest on due date if no renewalbefore'
    #   at t/db_dependent/Circulation.t line 349.
    #          got: '2022-11-18T14:16:12'
    #     expected: '2022-12-02T23:59:00'
    # Looks like you failed 2 tests of 5

We were reaching return $now

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>