[RELEASE] Released version 3.1-dev9

[RELEASE] Released version 3.1-dev9

Released version 3.1-dev9 with the following main changes :
    - MINOR: tools: add minimal file name management
    - CLEANUP: stick-table: make the file location point to a global file name
    - MINOR: proxy: use the global file names for conf->file
    - CLEANUP: cfgparse: factor proxy vs log-forward collisions
    - BUG/MINOR: cfgparse: detect another uncaught case of duplicate defaults
    - MINOR: proxy: add a list of orphaned defaults sections
    - MEDIUM: cfgparse: drop duplicate named defaults sections after use
    - OPTIM: cfgparse: speed up duplicate server detection
    - MEDIUM: cfgparse: warn about deprecated use of duplicate server names
    - BUG/MINOR: server: shut down streams under thread isolation
    - BUG/MINOR: proxy: also make the cli and resolvers use the global name
    - REGTESTS: log: fix log-profile.vtc
    - MEDIUM: mailers: warn about deprecated legacy mailers
    - BUG/MEDIUM: cli: Be sure to catch immediate client abort
    - DEV: flags/applet: decode appctx flags
    - BUG/MEDIUM: cli: Deadlock when setting frontend maxconn
    - MINOR: log: fix indent in strm_log()
    - MINOR: log: introduce extra log profile steps
    - MINOR: log: handle extra log origins in _process_send_log_override()
    - MINOR: log: introduce log_orig flags
    - MINOR: log: explicitly handle extra log origins as error when relevant
    - MINOR: log: support extra log origins for '%OG' alias
    - MINOR: proxy: add log_steps struct member
    - MINOR: log: introduce "log-steps" proxy keyword
    - MINOR: log: add log_orig_proxy() helper function
    - MEDIUM: log: consider log-steps proxy setting for existing log origins
    - DOC: config: document proxy "log-steps" keyword
    - REGTESTS: add a test for proxy "log-steps"
    - Revert "BUG/MINOR: server: shut down streams under thread isolation"
    - MINOR: task: define two new one-shot events for use with WOKEN_OTHER or MSG
    - BUG/MEDIUM: stream: make stream_shutdown() async-safe
    - BUG/MINOR: server: make sure the HMAINT state is part of MAINT
    - BUG/MINOR: queue: make sure that maintenance redispatches server queue
    - MINOR: server: make srv_shutdown_sessions() call pendconn_redistribute()
    - BUILD: tools: only include execinfo.h for the real backtrace() function
    - MINOR: tools: do not attempt to use backtrace() on linux without glibc
    - OPTIM: channel: speed up co_getline()'s search of the end of line
    - OPTIM: stconn: Don't pretend mux have more data to deliver on EOI/EOS/ERROR
    - BUG/MINOR: mcli: Pretend the mux have more data to deliver between two commands
    - MINOR: action: Export release_expr_int_action() release function
    - MINOR: stream: Rely on a per-stream max connection retries value
    - MINOR: stream: Support dynamic changes of the number of connection retries
    - MINOR: stream/stats: Expose the current number of streams in stats
    - MINOR: stream/stats: Expose the total number of streams ever created in stats
    - BUG/MINOR: cfgparse-global: fix allowed args number for setenv
    - MINOR: cfgparse-global: add dedicated parser for *env keywords
    - MINOR: mux-quic: complete Tx infos for QCS dump
    - MINOR: quic: ensure txbuf realloc is only performed on empty buffer
    - MINOR: mux-quic: strengthen qcs_send_metadata() usage
    - MINOR: quic: remove unneeded notification of txbuf room
    - MINOR: quic: refactor MUX send notification
    - MEDIUM: quic: strengthen MUX send notification
    - MINOR: quic: refactor STREAM room notification
    - MINOR: quic: do not remove qc_stream_desc automatically on ACK handling
    - MINOR: quic: store streambuf in a streamdesc tree
    - MINOR: quic: move buffered ACK to streambuf
    - MEDIUM: quic: handle out-of-order ACK at streamdesc layer
    - MEDIUM: quic: refactor buffered STREAM ACK consuming
    - BUG/MEDIUM: queue: always dequeue the backend when redistributing the last server
    - MINOR: config/trace: Add a 'traces' section to declare debug traces
    - MINOR: trace: Be able to chain commands for a source in one line
    - MINOR: tcpcheck: Add support for an option host header value for httpchk option
    - BUG/MINOR: mux-h1: Fix condition to set EOI on SE during zero-copy forwarding
    - MINOR: mux-h1: Use a dedicated function to conditionnaly set EOI flag on SE
    - BUG/MINOR: http-ana: Disable fast-fwd for unfinished req waiting for upgrade
    - BUG/MINOR: mux-quic: fix crash on qcc_init() early return
    - BUG/MINOR: quic: fix trace on releasing STREAM frame after ack