gtk-vnc: upgrade 1.3.1 -> 1.4.0

Changelog:
=========
- Support g_autoptr for exported allocated types
- Require meson >= 0.56
- Replace gtk-doc with gi-docgen for API docs
- Add missing vnc_color_map_lookup method sym to exports
- Speed up coroutine switching with setjmp/longjmp
- Improve valgrind compatibility with coroutines
- Add native winfiber coroutine for Windows
- Add support for libucontext coroutines
- Refuse to use broken native ucontext support on macOS aarch64
- Raise fatal error on impossible conditions / OOM in coroutines
- Many other misc coroutine bugs / improvements
- Add support to pass CA cert data for TLS
- Allow ungrabbing keyboard in gvncviewer demo
- Fix leak of socket address in SASL auth
- Avoid mandating SASL SSF over UNIX sockets
- Don't assume SASL out data is NUL terminated
- Fix rendering artifacts on HiDPI displays
- Don't expose server auth types to apps that are not implemented
- Convert more code to use GNUTLS for ciphers/hashes
- Replace remaining use of gcrypt with gmp
- Add unit testing of VNC, ARD, MS logon auth types

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-gnome/recipes-connectivity/gtk-vnc/gtk-vnc_1.4.0.bb

@@ -27,4 +27,4 @@ inherit pkgconfig gnomebase gettext gobject-introspection vala features_check
 
 PACKAGE_DEBUG_SPLIT_STYLE = "debug-without-src"
 
-SRC_URI[archive.sha256sum] = "512763ac4e0559d0158b6682ca5dd1a3bd633f082f5e4349d7158e6b5f80f1ce"
+SRC_URI[archive.sha256sum] = "1be64c4e4760c52b3ec33067290d1efa40ad4cecab6c673813804e3c559d9683"