ipa-replica-install: nsds5replicaUpdateInProgress is a Boolean
    
    nsds5replicaUpdateInProgress is defined in LDAP schema as a boolean.
    Now that IPA API is able to properly map booleans to the python
    bool type, this attribute is not a string any more and
    comparisons can be done directly based on its real type.
    
    The code in ipa-replica-install was reading nsds5replicaUpdateInProgress
    and calling value.tolower() == 'true' but should now use
    value == True instead.
    
    Related: https://pagure.io/freeipa/issue/9171
    Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
    Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>