Build JASP 0.98.8 and start the nightly run at 22:00

JASP 0.98.8 requires the Qt NetworkAuth component, so the build installs
qt6-networkauth and the package depends on it at runtime. Without it CMake
stopped at configure and the run failed every evening.

The scheduled run now starts at 22:00 Danish time instead of 18:00, so the
hours-long build no longer competes with evening use of the runner host.

Claude-Session: https://claude.ai/code/session_01JmhJG6JnhXfzNiKv8f2vHu

.gitea/workflows/build.yml

@@ -7,10 +7,10 @@ name: Build JASP binary and publish to AUR
 
 on:
   schedule:
-    # 16:00 UTC is 18:00 CEST / 17:00 CET. A full build takes a little over two
-    # hours, so the AUR push (made under the maintainer's name) and the
-    # state.json commit land on an evening, not in working hours.
-    - cron: '0 16 * * *'
+    # 22:00 Danish time, all year: the build saturates the runner host for
+    # hours, so it runs when nobody is using it. The TZ prefix keeps the start
+    # at 22:00 across daylight saving time instead of drifting with UTC.
+    - cron: 'TZ=Europe/Copenhagen 0 22 * * *'
   workflow_dispatch:
     inputs:
       jasp_tag: