Update libssh to rev 60 via SR 755661
    
    https://build.opensuse.org/request/show/755661
    by user dimstar_suse
    - Update to version 0.9.3
      * Fixed CVE-2019-14889 - SCP: Unsanitized location leads to command execution
      * SSH-01-003 Client: Missing NULL check leads to crash in erroneous state
      * SSH-01-006 General: Various unchecked Null-derefs cause DOS
      * SSH-01-007 PKI Gcrypt: Potential UAF/double free with RSA pubkeys
      * SSH-01-010 SSH: Deprecated hash function in fingerprinting
      * SSH-01-013 Conf-Parsing: Recursive wildcards in hostnames lead to DOS
      * SSH-01-014 Conf-Parsing: Integer underflow leads to OOB array access
      * SSH-01-001 State Machine: Initial machine states should be set explicitly
      * SSH-01-002 Kex: Differently bound macros used to iterate same array
      * SSH-01-005 Code-Quality: Integer sign confusion during assignments
      * SSH-01-008 SCP: Protocol Injection via unescaped F