feat: release v1.1.6

bugfix: invaild http version (#21)

feat: release v1.1.5

fix: incorrect handling of multiple header values in HTTP/2

feat: release v1.1.4

feat: send data in one go

ci: remove github.event.head_commit.message in release.yml

ci: update openresty version (#20)

docs: add comparison to c t1k (#19)

feat: release v1.1.3

feat: performance optimization for build_header() (#18)

ci: update actions/checkout to v4

feat: performance optimization for buffer (#16)

feat: release v1.1.2

fix: enable connect timeout (#14)