CHANGES:

• cohttp,cohttp-async server: correctly close broken streams (reported by Stéphane Glondu, fix by samhot and anuragsoni)
• cohttp-eio: remove unused code from tests to work with Eio 0.8 (talex5 #967)
• Upgrade dune to v3.0 (bikallem #947)
• cohttp-eio: allow client to optionally configure request pipelining (bikallem #949)
• cohttp-eio: update to Eio 0.7 (talex5 #952)
• cohttp-eio: update examples to use eio 0.7 primitives (bikallem #957)
• cohttp-eio: generate Date header in responses (bikallem #955)
• cohttp-eio: further improve Cohttp_eio.Client ergonomics (bikallem #?)
• cohttp-eio: server api improvements (bikallem #962)