0.3.8 Release

What's Changed

• [metric]Optimize summary by @qicosmos in #761
• [metric][feat]serialize zero by @qicosmos in #762
• [metric]fix life time by @qicosmos in #763
• [metric][fix]remove nan by @qicosmos in #765
• [reflection][refactor]Iguana with ylt reflection by @qicosmos in #766
• [metric] refact summary with better algorithm by @poor-circle in #767
• [reflection]fix and improve by @qicosmos in #768
• [metric][doc] update doc for summary, remove some useless code for o… by @poor-circle in #770
• [struct_pack][fix] fix mod zero error when struct only contain compat… by @poor-circle in #769
• [struct_pack] fix reflection by @poor-circle in #772
• [struct_pack][fix] fix windows ci, fix compatible in windows by @poor-circle in #771
• [reflection][change]get alias name by adl by @qicosmos in #773
• [coro_http][fix] fix handle result of async_upload by @poor-circle in #774
• [struct_pb]improve performance by @qicosmos in #775
• [struct_pack][fix] fix compile error for user-defined serialization w… by @poor-circle in #776
• [metric] fix summary by @poor-circle in #777
• [metric] fix summary serialize to json thread-safe by @poor-circle in #778

Full Changelog: 0.3.7...0.3.8