SearchGPT: Switch to UTC timezone.

* Using Asia/Jakarta was causing the AI responses to default to Indonesian,
while this is a global community with traffic from multiple countries.

src/utils/time.py

@@ -3,12 +3,9 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 
-from datetime import datetime
-from zoneinfo import ZoneInfo
+from datetime import datetime, timezone
 
 def get_current_time() -> str:
-    return datetime.now(ZoneInfo(
-        "Asia/Jakarta"
-    )).strftime(
+    return datetime.now(timezone.utc).strftime(
         "%H:%M %Z. %A, %d %B %Y."
     )