gns3-server: update to 2.2.3.

srcpkgs/gns3-server/patches/async-timeout.patch

@@ -1,8 +0,0 @@
---- requirements.txt.orig	2018-06-16 17:35:19.069681399 -0700
-+++ requirements.txt	2018-06-16 17:35:29.289966118 -0700
-@@ -8,5 +8,5 @@
- zipstream>=1.1.4
- prompt-toolkit==1.0.15
--async-timeout<3.0.0 # pyup: ignore; 3.0 drops support for python 3.4
-+async-timeout
-

srcpkgs/gns3-server/template

@@ -1,6 +1,6 @@
 # Template file for 'gns3-server'
 pkgname=gns3-server
-version=2.1.21
+version=2.2.3
 revision=1
 build_style=python3-module
 pycompile_module="gns3server"
@@ -13,7 +13,7 @@ maintainer="Michael Aldridge <maldridge@voidlinux.org>"
 license="GPL-3.0-or-later"
 homepage="https://gns3.com"
 distfiles="https://github.com/GNS3/gns3-server/archive/v${version}.tar.gz"
-checksum=81ea693d5995005cc50450d558128a9a9fda9ea8ff00225de1090148ffbc70ff
+checksum=d4e7ca531e352259d2d7f8ff6fc9126a18adcdd6628ef5cbdbffbffe5515d91a
 
 pre_build() {
 	# relax requirements