v3.2.0

• dependencies: http-parser has been replaced by llhttp (optional, used for the proxy)
• dht: add support to behave as a client node. A client node doesn't participate in routing or storing data but can perform queries to other nodes. This can be useful when running short-lived nodes.
• dht: use poll instead of select
• peer discovery: ping network after connectivity change (@AmnaSnene )
• peer discovery: add retry mechanism with exponential back-off (@AmnaSnene )
• peer discovery: add workaround for Android (@Lanius-collaris )
• http: allow to modify keepalive option
• http: adjusted keepalive settings
• crypto: fix error when using empty password (@qiek )
• crypto: improve error handling and messages (@lucassdiass )
• build: add support to build with io_uring (used by asio)
• fix various warnings (@Noviv )