[RELEASE] Released version 2.3.16

[RELEASE] Released version 2.3.16

Released version 2.3.16 with the following main changes :
    - BUG/MEDIUM: mux-h1: Fix H1C_F_ST_SILENT_SHUT value
    - BUG/MEDIUM: ssl: backend TLS resumption with sni and TLSv1.3
    - DOC: config: Fix typo in ssl_fc_unique_id description
    - BUG/MINOR: http-ana: Apply stop to the current section for http-response rules
    - Revert "BUG/MINOR: http-ana: Don't eval front after-response rules if stopped on back"
    - DOC: lua: Be explicit with the Reply object limits
    - BUG/MEDIUM: conn-stream: Don't reset CS flags on close
    - BUG/MINOR: mworker: doesn't launch the program postparser
    - BUG/MINOR: mux-h2: Fix H2_CF_DEM_SHORT_READ value
    - BUG/MEDIUM: connection: make cs_shutr/cs_shutw//cs_close() idempotent
    - BUG/MINOR: stick-table/cli: Check for invalid ipv6 key
    - MINOR: connection: add a new CO_FL_WANT_DRAIN flag to force drain on close
    - MINOR: mux-h2: perform a full cycle shutdown+drain on close
    - BUG/MEDIUM: ssl: abort with the correct SSL error when SNI not found
    - BUG/MEDIUM: mux-h2: always process a pending shut read
    - BUG/MEDIUM: shctx: leave the block allocator when enough blocks are found
    - BUG/MINOR: shctx: do not look for available blocks when the first one is enough
    - MINOR: shctx: add a few BUG_ON() for consistency checks