Fix recurring task crash

It would fail when inserting a commit into the queue that was already in
the queue, instead of just skipping that commit.

.sqlx/query-9d51c90afa966740bbd7801c3e6736821d2ab899a6390ec1b66a2067cbcadc25.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "INSERT OR IGNORE INTO queue (hash, date) VALUES (?, ?)",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 2
+    },
+    "nullable": []
+  },
+  "hash": "9d51c90afa966740bbd7801c3e6736821d2ab899a6390ec1b66a2067cbcadc25"
+}

.sqlx/query-d620ced558e472a5fe22d5ad365cf25726a7bb969acc8b9411a2591ce7bcc92f.json

@@ -1,12 +0,0 @@
-{
-  "db_name": "SQLite",
-  "query": "INSERT INTO queue (hash, date) VALUES (?, ?)",
-  "describe": {
-    "columns": [],
-    "parameters": {
-      "Right": 2
-    },
-    "nullable": []
-  },
-  "hash": "d620ced558e472a5fe22d5ad365cf25726a7bb969acc8b9411a2591ce7bcc92f"
-}

src/server/recurring/queue.rs

@@ -19,7 +19,7 @@ pub async fn update(db: &SqlitePool) -> somehow::Result<()> {
     for row in new {
         let date = OffsetDateTime::now_utc();
         sqlx::query!(
-            "INSERT INTO queue (hash, date) VALUES (?, ?)",
+            "INSERT OR IGNORE INTO queue (hash, date) VALUES (?, ?)",
             row.hash,
             date,
         )