[PM-20064] Add cascade deletion for cipher with tasks (#5690)

* add cascade deletion for cipher tasks

* add migrations for cascade delete on ciphers and security tasks

* remove trailing comma

* add SQL migration for PasswordHealthReportApplication

- Allow cascade delete when an organization is deleted

util/PostgresMigrations/Migrations/20250422183847_SecurityTaskCascadeDelete.cs

@@ -0,0 +1,40 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Bit.PostgresMigrations.Migrations;
+
+/// <inheritdoc />
+public partial class SecurityTaskCascadeDelete : Migration
+{
+    /// <inheritdoc />
+    protected override void Up(MigrationBuilder migrationBuilder)
+    {
+        migrationBuilder.DropForeignKey(
+            name: "FK_SecurityTask_Cipher_CipherId",
+            table: "SecurityTask");
+
+        migrationBuilder.AddForeignKey(
+            name: "FK_SecurityTask_Cipher_CipherId",
+            table: "SecurityTask",
+            column: "CipherId",
+            principalTable: "Cipher",
+            principalColumn: "Id",
+            onDelete: ReferentialAction.Cascade);
+    }
+
+    /// <inheritdoc />
+    protected override void Down(MigrationBuilder migrationBuilder)
+    {
+        migrationBuilder.DropForeignKey(
+            name: "FK_SecurityTask_Cipher_CipherId",
+            table: "SecurityTask");
+
+        migrationBuilder.AddForeignKey(
+            name: "FK_SecurityTask_Cipher_CipherId",
+            table: "SecurityTask",
+            column: "CipherId",
+            principalTable: "Cipher",
+            principalColumn: "Id");
+    }
+}