[RELEASE] Released version 2.1.2

[RELEASE] Released version 2.1.2

Released version 2.1.2 with the following main changes :
    - DOC: clarify the fact that replace-uri works on a full URI
    - BUG/MINOR: sample: fix the closing bracket and LF in the debug converter
    - BUG/MINOR: sample: always check converters' arguments
    - MINOR: sample: Validate the number of bits for the sha2 converter
    - BUG/MEDIUM: ssl: Don't set the max early data we can receive too early.
    - MINOR: debug: support logging to various sinks
    - MINOR: http: add a new "replace-path" action
    - MINOR: task: only check TASK_WOKEN_ANY to decide to requeue a task
    - BUG/MAJOR: task: add a new TASK_SHARED_WQ flag to fix foreing requeuing
    - BUG/MEDIUM: ssl: Revamp the way early data are handled.
    - MINOR: fd/threads: make _GET_NEXT()/_GET_PREV() use the volatile attribute
    - BUG/MEDIUM: fd/threads: fix a concurrency issue between add and rm on the same fd
    - BUG/MINOR: ssl: openssl-compat: Fix getm_ defines
    - BUG/MEDIUM: state-file: do not allocate a full buffer for each server entry
    - BUG/MINOR: state-file: do not store duplicates in the global tree
    - BUG/MINOR: state-file: do not leak memory on parse errors
    - BUG/MEDIUM: stream: Be sure to never assign a TCP backend to an HTX stream
    - BUILD: ssl: improve SSL_CTX_set_ecdh_auto compatibility