Update holiday hours and ASUC Staff Training entry

Added holiday hours for RRR Week and updated ASUC Staff Training entry.

Author: Storce

configs/hours.yaml

@@ -13,6 +13,7 @@ regular:
     - ['12:00', '18:00']
   Sunday: null
 holidays:
+# Do not specify hours field if we are closed for the day
   - date: 2025-12-13
     reason: RRR Week Saturday Hours
     hours:
@@ -29,5 +30,4 @@ holidays:
     reason: Summer Break
   - date: 2026-01-31
     reason: ASUC Staff Training
-    hours: Closed