when ciphers are soft deleted, complete any associated security tasks (#6492)

util/Migrator/DbScripts/2025-10-23_00_CompleteSecurityTaskByCipherIds.sql

@@ -0,0 +1,15 @@
+CREATE OR ALTER PROCEDURE [dbo].[SecurityTask_MarkCompleteByCipherIds]
+    @CipherIds AS [dbo].[GuidIdArray] READONLY
+AS
+BEGIN
+    SET NOCOUNT ON
+
+    UPDATE
+        [dbo].[SecurityTask]
+    SET
+        [Status] = 1, -- Completed
+        [RevisionDate] = SYSUTCDATETIME()
+    WHERE
+        [CipherId] IN (SELECT [Id] FROM @CipherIds)
+        AND [Status] <> 1 -- Not already completed
+END