Bump version to 1.3.6.3-3
    Ticket 49186 - Fix NS to improve shutdown relability
    Ticket 49174 - nunc-stans can not use negative timeout
    Ticket 49076 - To debug DB_DEADLOCK condition, allow to reset DB_TXN_NOWAIT flag on txn_begin
    Issue 49188 - retrocl can crash server at shutdown
    Ticket 47840 - Add setup_ds test suite
    
    (cherry picked from commit 1c5b86775adf782da404782261fb129ab3c64544)