[Feature][3.3] Triple protocol http1 upgrade support

[oxsean]

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Apache Dubbo Component

Java SDK (apache/dubbo)

Descriptions

Documents and netty demo:

• https://developer.mozilla.org/en-US/docs/Web/HTTP/Protocol_upgrade_mechanism
• https://github.com/abhijitparkhi1983/netty/blob/b2dc54c8c672c325e1056c62f7ca84406e28fb91/example/src/main/java/io/netty/example/http2/helloworld/server/HelloWorldHttp2Handler.java

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[walklown]

Could you please add some details, such as the usage scenarios of this function in the Tripple protocol?

[oxsean]

If using non-gRPC, clients usually don't default to HTTP/2. Therefore, after supporting http1 upgrade, clients can be guided to upgrade to HTTP/2, leverage the benefits of Http/2

[oxsean]

@walklown please take a look this PR: https://github.com/apache/dubbo/pull/14223