New release 2.2.56

=== Breaking changes
 - N/A

=== New features
 - ipsec: New option `nm-auto-defaults: false`. (b105a178)
 - ipsec: Support `rightca` option. (891e18f4)
 - service: Support `.yaml` extension. (993a01b3)

=== Bug fixes
 - nm: deactivate hsr interface before reactivating when changed. (9787cfc9)

Signed-off-by: Gris Ge <fge@redhat.com>