calendar_store: Fix deleted objects being returned

.sqlx/query-543838c030550cb09d1af08adfeade8b7ce3575d92fddbc6e9582d141bc9e49d.json

@@ -0,0 +1,26 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, ics FROM calendarobjects WHERE (principal, cal_id, id) = (?, ?, ?) AND ((deleted_at IS NULL) OR ?)",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "ics",
+        "ordinal": 1,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 4
+    },
+    "nullable": [
+      false,
+      false
+    ]
+  },
+  "hash": "543838c030550cb09d1af08adfeade8b7ce3575d92fddbc6e9582d141bc9e49d"
+}