Checker: Assign boolean values to cancel_checks

SQLite works fine with integers but Postgres only permits boolean
values.

Fixes: 739fc6f (Checker: Terminate Checker Scripts after competition has finished, 2023-04-22)

src/ctf_gameserver/controller/database.py

@@ -27,7 +27,7 @@ def get_control_info(db_conn, prohibit_changes=False):
 def increase_tick(db_conn, prohibit_changes=False):
 
     with transaction_cursor(db_conn, prohibit_changes) as cursor:
-        cursor.execute('UPDATE scoring_gamecontrol SET current_tick = current_tick + 1, cancel_checks = 0')
+        cursor.execute('UPDATE scoring_gamecontrol SET current_tick = current_tick + 1, cancel_checks = false')
         # Create flags for every service and team in the new tick
         cursor.execute('INSERT INTO scoring_flag (service_id, protecting_team_id, tick)'
                        '    SELECT service.id, team.user_id, control.current_tick'
@@ -39,7 +39,7 @@ def increase_tick(db_conn, prohibit_changes=False):
 def cancel_checks(db_conn, prohibit_changes=False):
 
     with transaction_cursor(db_conn, prohibit_changes) as cursor:
-        cursor.execute('UPDATE scoring_gamecontrol SET cancel_checks = 1')
+        cursor.execute('UPDATE scoring_gamecontrol SET cancel_checks = true')
 
 
 def update_scoring(db_conn):

tests/checker/test_integration.py

@@ -274,7 +274,7 @@ def test_cancel_checks(self, monotonic_mock, warning_mock):
         os.kill(checkerscript_pid, 0)
 
         with transaction_cursor(self.connection) as cursor:
-            cursor.execute('UPDATE scoring_gamecontrol SET cancel_checks=1')
+            cursor.execute('UPDATE scoring_gamecontrol SET cancel_checks=true')
 
         master_loop.supervisor.queue_timeout = 0.01
         monotonic_mock.return_value = 190

tests/controller/test_main_loop.py

@@ -108,7 +108,7 @@ def test_next_tick_overdue(self, sleep_mock, _):
         with transaction_cursor(self.connection) as cursor:
             cursor.execute('UPDATE scoring_gamecontrol SET start=datetime("now", "-19 minutes"), '
                            '                               end=datetime("now", "+1421 minutes"), '
-                           '                               current_tick=5, cancel_checks=1')
+                           '                               current_tick=5, cancel_checks=true')
 
         controller.main_loop_step(self.connection, self.metrics, False)