Add support for Protocol::HTTP2::Settings::NO_RFC7540_PRIORITIES.

Author: ioquatix

async-http.gemspec

@@ -30,7 +30,7 @@ Gem::Specification.new do |spec|
 	spec.add_dependency "io-stream", "~> 0.6"
 	spec.add_dependency "protocol-http", "~> 0.43"
 	spec.add_dependency "protocol-http1", ">= 0.28.1"
-	spec.add_dependency "protocol-http2", "~> 0.21"
+	spec.add_dependency "protocol-http2", "~> 0.22"
 	spec.add_dependency "traces", "~> 0.10"
 	spec.add_dependency "metrics", "~> 0.12"
 end

lib/async/http/protocol/http2.rb

@@ -27,6 +27,7 @@ def self.trailer?
 					::Protocol::HTTP2::Settings::ENABLE_PUSH => 0,
 					::Protocol::HTTP2::Settings::MAXIMUM_FRAME_SIZE => 0x100000,
 					::Protocol::HTTP2::Settings::INITIAL_WINDOW_SIZE => 0x800000,
+					::Protocol::HTTP2::Settings::NO_RFC7540_PRIORITIES => 1,
 				}
 
 				SERVER_SETTINGS = {
@@ -35,6 +36,7 @@ def self.trailer?
 					::Protocol::HTTP2::Settings::MAXIMUM_FRAME_SIZE => 0x100000,
 					::Protocol::HTTP2::Settings::INITIAL_WINDOW_SIZE => 0x800000,
 					::Protocol::HTTP2::Settings::ENABLE_CONNECT_PROTOCOL => 1,
+					::Protocol::HTTP2::Settings::NO_RFC7540_PRIORITIES => 1,
 				}
 
 				def self.client(peer, settings = CLIENT_SETTINGS)