[gnome-builder] Update flatpak-gtksharp.json.tmpl "runtime-version": "3.30" from 3.28

[Christian Hergert <chergert src gnome org>]

commit 7eac55b092e2847f26be2a85c93edb2d8e4bf946
Author: somedudde <nullbytechr13 gmail com>
Date:   Fri Nov 23 01:50:11 2018 +0000

    Update flatpak-gtksharp.json.tmpl "runtime-version": "3.30" from 3.28

 src/plugins/meson-templates/resources/flatpak-gtksharp.json.tmpl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/plugins/meson-templates/resources/flatpak-gtksharp.json.tmpl 
b/src/plugins/meson-templates/resources/flatpak-gtksharp.json.tmpl
index 4c7788932..b3fb2f69a 100644
--- a/src/plugins/meson-templates/resources/flatpak-gtksharp.json.tmpl
+++ b/src/plugins/meson-templates/resources/flatpak-gtksharp.json.tmpl
@@ -1,7 +1,7 @@
 {
     "app-id": "{{appid}}",
     "runtime": "org.gnome.Platform",
-    "runtime-version": "3.28",
+    "runtime-version": "3.30",
     "sdk": "org.gnome.Sdk",
     "command": "{{exec_name}}",
     "sdk-extensions": ["org.freedesktop.Sdk.Extension.mono5"],