Update gliff to 0.2.0

gliff now lives at omacom/gliff and cuts tagged releases, so build
the tag archive instead of a pinned commit and watch its tags.

The codec moved to VA-API: add libva, and dbus for notifications.
Install the launcher entry and icon, with the icon cache hook, and
ship the OpenH264 license.

pkgbuilds/gliff/.omarchy/package.json

@@ -1,3 +1,12 @@
 {
-  "source": "local"
+  "source": "local",
+  "upstream": {
+    "git_tags": "https://github.com/omacom/gliff.git",
+    "tag_pattern": "v{pkgver}",
+    "sources": {
+      "any": [
+        "https://github.com/omacom/gliff/archive/refs/tags/{tag}.tar.gz"
+      ]
+    }
+  }
 }