New upstream release 5.70
    
    * Bugfixes
      - Fixed TLS socket EOF handling with OpenSSL 3.x.
        This bug caused major interoperability issues between
        stunnel built with OpenSSL 3.x and Microsoft's
        Schannel Security Support Provider (SSP).
      - Fixed reading certificate chains from PKCS#12 files.
    * Features
      - Added configurable delay for the "retry" option.
    
    Resolves: rhbz#2222467
    Signed-off-by: Clemens Lang <cllang@redhat.com>