New release 0.25.0

Breaking changes

• Drop the dependency on netlink-packet-utils. (e09acbd)
• Add non_exhaustive to these bond options: (eacf67f)
  • BondArpValidate
  • BondPrimaryReselect
  • BondXmitHashPolicy
  • BondArpAllTargets
  • BondFailOverMac
• Changed AfSpecInet6::AddrGenMode to enum. (7daf895)
• Changed LinkAttribute::Mode to enum. (be2796c)

New features

• Support LWTUNNEL_ENCAP_IP6. (0e49453)

Bug fixes

• Expose In6AddrGenMode. (faf9d39)