Removed support for V1

public/v1/apps/__upgrade_caprover__.json

@@ -0,0 +1,24 @@
+{
+    "captainVersion": "1",
+    "documentation": "Just a placeholder for upgrade message",
+    "dockerCompose": {
+        "services": {
+            "$$cap_appname": {
+                "image": "this-is-not-a-real-app:$$cap_adminer_version"
+            }
+        }
+    },
+    "instructions": {
+        "start": "You CapRover is not supported anymore. Navigate to SETTINGS and update your CapRover.",
+        "end": ""
+    },
+    "variables": [{
+            "id": "$$cap_adminer_version",
+            "label": "Update CapRover",
+            "description": "",
+            "defaultValue": "NOT SUPPORTED",
+            "validRegex": "/.{100,}/"
+        }
+    ]
+
+}