Delete test (ct) after migration to ProxmoxVE (#1560)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

json/test.json

@@ -1,54 +0,0 @@
-{
-    "name": "Test",
-    "slug": "test",
-    "categories": [
-        0
-    ],
-    "date_created": "2026-03-12",
-    "type": "ct",
-    "updateable": true,
-    "privileged": false,
-    "interface_port": 8080,
-    "documentation": null,
-    "website": "https://example.com",
-    "logo": null,
-    "description": "Example test app for Proxmox VE.",
-    "install_methods": [
-        {
-            "type": "default",
-            "script": "ct/test.sh",
-            "resources": {
-                "cpu": 2,
-                "ram": 2048,
-                "hdd": 8,
-                "os": "Debian",
-                "version": "12"
-            }
-        },
-        {
-            "type": "alpine",
-            "script": "install/test-install.sh",
-            "resources": {
-                "cpu": 1,
-                "ram": 512,
-                "hdd": 4,
-                "os": "Alpine",
-                "version": "3.22"
-            }
-        }
-    ],
-    "default_credentials": {
-        "username": "admin",
-        "password": null
-    },
-    "notes": [
-        {
-            "text": "This is an example test app. Change credentials after first login.",
-            "type": "warning"
-        },
-        {
-            "text": "Alpine install uses minimal resources; default uses Debian 12.",
-            "type": "info"
-        }
-    ]
-}