bRPC 1.8.0

Feature:

• Support multi bthread worker group with tag (#2358) (#2476) by @yanglimingcn
• Support user callback after sending response before request/response object destruction (#2328) by @yockie
• Support url safe base64 (#2337) by @chenBright
• Support loongarch64 (#2364) by @zhaixiaojuan
• Support compile with boringssl (#2399) by @ehds
• Support user fields of baidu protocol (#2406) by @chenBright
• Support client ALPN (#2251) by @Menci
• Support c++20 coroutine (#2121) by @wwbmmm
• Support grpc health check (#2493) by @jiangyt-git
• Support A Multiple Producer, Single Consumer Queue (#2492) by @chenBright
• Support async logging (#2413) by @chenBright
• Support memory builtin service (#2505) by @chenBright

Bugfix:

• Fix compile on ubuntu18.04 (#2422) by @Simonhancrew
• Fix huge rdma_recv_block_type no effect issue (#2326) by @legionxiong
• Fix h2 protocol abnormal case when SETTINGS_HEADER_TABLE_SIZE set to zero (#2373) by @982945902
• Fix mbvar convert prometheus metrics format issue (#2235) by @rock-git
• Fix bthread_usleep return code when schedule timer failed (#2435) (#2511) by @chenBright
• Fix stream write in background not work (#2440) by @chenBright
• Fix http verbose memory leak (#2429) by @chenBright
• Fix window update threshold (#2418) by @jiangyt-git
• Fix brpc/details/http_message.h compilation in CentOS8 (#2474) by @binarycopycode
• Fix json2pb compile error of examples (#2482) by @chenBright
• Fix scoped_refptr leave ptr_ uninit when move construct by nullptr (#2491) by @lengmoXXL
• Fix LoadBalancerWithNaming memory leak when ssl init failed (#2503) by @ehds

Enhancement:

• Reserve at least one idle socket (#2390) by @chenBright
• rpm: upgrade compiler required by DoublyBufferedData by @wasphin
• Disallow copy and assign of Channel (#2439) by @chenBright
• LALB try left server nodes (#2428) by @FancyJan
• Add wrr lb fallback strategy (#2441) by @jiangyt-git
• Support max width of flame graph image (#2452) by @chenBright
• Remove Content-Length header of GET request (#2458) by @chenBright
• Support 100-continue of server and remove expect header of request (#2499) by @chenBright
• Optimize Content-Length in response to HEAD request (#2469) by @chenBright
• Fix Content-Length and Transfer-Encoding problem (#2518) by @chenBright
• Optimize ssl read log (#2451) by @chenBright
• Optimize ParallelChannel AddChannel Interface (#2467) by @sinomiko
• Support uint32 reloadable flags (#2483) by @chenBright
• tests: use global CMAKE_CPP_FLAGS (#2494) by @OdyX
• Optimize contention: support tcmalloc GetStackTrace and reduce hash calculations (#2488) by @chenBright
• Fix gdb bthread stack when using libc++ (#2516) by @ehds
• Add lldb bthread stack debug script (#2514) by @ehds
• Optimize HttpResponseSender move constructor (#2504) by @chenBright
• Change UserDataDeleter type from function ptr to std::function (#2431) by @coyorkdow
• Move fuzz test in main repo add more fuzz test (#2420) by @0x34d

Other:

• Update documents and comments by @khalid586, @Sea-n, @darionyaphet, @DevanshKyada27, @Wongony, @chenBright, @Divyansh200102, @wwbmmm, @OdyX, @darionyaphet