Bump version to 1.2.6 for new dev cycle
Bump version to 1.2.6 for new dev cycle

Signed-off-by: Martin Kletzander <e82f23e74d43760279ebcc505dac4ae70d5627d0@redhat.com>

libvirt/libvirt-python,libvirt/libvirt-python,libvirt/libvirt-python