update libssh to https://git.libssh.org/projects/libssh.git/snapshot/…

…libssh-0.10.4.tar.xz

update libssh to https://www.libssh.org/2022/09/05/libssh-0-10-3/ with:

This is the a bug fix release for libssh which addresses a possible infinite loop in known hosts parsing.

Thanks to all contributors who made this release possible!

If you are new to libssh you should read our tutorial how to get started.Please join our mailing list or visit our Matrix channel if you have questions.

You can download libssh-0.10.3 here.
Changelog

    Fixed possible infinite loop in known hosts checking

build_3rdparty.py

@@ -73,8 +73,8 @@
     'libssh': {
         'order' : 3,
         'shadow': True,
-        'url'   : 'https://git.libssh.org/projects/libssh.git/snapshot/libssh-0.10.2.tar.xz',
-        'sha1'  : '5e5fbe8cb24702a06fca4303bb66d68c2a2e644a',
+        'url'   : 'https://git.libssh.org/projects/libssh.git/snapshot/libssh-0.10.4.tar.xz',
+        'sha1'  : '968909684dacc24139b6dd27cce99a8cba699d5c',
         'target': {
             'mingw-w64': {
                 'result':   ['include/libssh/libssh.h', 'lib/libssh.a'],