Fix deleting database host when it has assigned nodes (#899)

* Cascade delete from database_host_node when the database host is deleted

* Update database/migrations/2025_01_09_143607_database_host_node_foreign_delete_cascade.php

Remove migration rollback

Co-authored-by: MartinOscar <40749467+RMartinOscar@users.noreply.github.com>

* Update 2025_01_09_143607_database_host_node_foreign_delete_cascade.php

Fix brace position

---------

Co-authored-by: MartinOscar <40749467+RMartinOscar@users.noreply.github.com>

database/migrations/2025_01_09_143607_database_host_node_foreign_delete_cascade.php

@@ -0,0 +1,24 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('database_host_node', function (Blueprint $table) {
+            $table->dropForeign(['database_host_id']);
+            $table->foreign('database_host_id')->references('id')->on('database_hosts')->cascadeOnDelete();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void {}
+};