Update bind to version 9.18.15 / rev 195 via SR 1087546
    
    https://build.opensuse.org/request/show/1087546
    by user jcronenberg + dimstar_suse
    - Update to release 9.18.15
      Bug Fixes:
      * The max-transfer-time-in and max-transfer-idle-in statements
        have not had any effect since the BIND 9 networking stack was
        refactored in version 9.16. The missing functionality has been
        re-implemented and incoming zone transfers now time out
        properly when not progressing.
      * The read timeout in rndc is now 60 seconds, matching the
        behavior in BIND 9.16 and earlier. It had previously been
        lowered to 30 seconds by mistake.
      * When the ISC_R_INVALIDPROTO (ENOPROTOOPT, EPROTONOSUPPORT)
        error code is returned by libuv, it is now treated as a network
        failure: the server for which that error code is returned gets
        marked as broken and is not contacted again during a given
        resolution process.
      * When removing del