[meld] flatpak: Update to the GNOME 3.30 runtime for Python 3.6

[Kai Willadsen <kaiw src gnome org>]

commit 71e8ec01cbeed09f603cea4caac755f1c2dd5221
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Fri Jan 18 09:42:29 2019 +1000

    flatpak: Update to the GNOME 3.30 runtime for Python 3.6

 data/org.gnome.meld-devel.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/org.gnome.meld-devel.json b/data/org.gnome.meld-devel.json
index 98fc7ada..323f4dcb 100644
--- a/data/org.gnome.meld-devel.json
+++ b/data/org.gnome.meld-devel.json
@@ -1,7 +1,7 @@
 {
   "app-id": "org.gnome.meld",
   "runtime": "org.gnome.Platform",
-  "runtime-version": "3.28",
+  "runtime-version": "3.30",
   "sdk": "org.gnome.Sdk",
   "command": "meld",
   "cleanup": [