v0.25.0

• Fix compile issue on rust 1.67.0 by updating dependencies (thanks @ZhongRuoyu)
• Refactor mqtt to do keep-alive automatically and by default. Some mqtt brokers started rejecting a keep-alive value of 0 as invalid, refusing the connection.

Thanks

We'd like to thank @SantiagoTorres, @repi and @rgacogne for their support on github sponsors.