test: take the rename test's parent hash from the create response

`format!("{:x}", …)` over the stored i64 drops leading zeros, while
`ScriptHash`'s deserializer hex-decodes and demands 8 bytes — so a hash below
2^60 would 422 the request instead of reaching the refusal it asserts on, on
roughly one in sixteen spellings of that script body. The create response
already carries the zero-padded form, as the rest of the suite uses.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

backend/.sqlx/query-87877da7342ee745514442387c707f75182ea2f25162fe6e3c9b99a8a8cfacdb.json

@@ -1,20 +0,0 @@
-{
-  "db_name": "PostgreSQL",
-  "query": "SELECT hash FROM script WHERE workspace_id = 'test-workspace' AND path = 'u/test-user/ingest' AND archived = false",
-  "describe": {
-    "columns": [
-      {
-        "ordinal": 0,
-        "name": "hash",
-        "type_info": "Int8"
-      }
-    ],
-    "parameters": {
-      "Left": []
-    },
-    "nullable": [
-      false
-    ]
-  },
-  "hash": "87877da7342ee745514442387c707f75182ea2f25162fe6e3c9b99a8a8cfacdb"
-}

backend/windmill-api-integration-tests/tests/dbt_materialize_target.rs

@@ -95,6 +95,10 @@ async fn test_dbt_materialize_target_deploy_contract(db: Pool<Postgres>) -> anyh
     )
     .await;
     assert_eq!(resp.status(), 201);
+    // The create response, not `{:x}` over the stored i64: `ScriptHash` decodes
+    // hex and demands 8 bytes, while `LowerHex` drops leading zeros, so a hash
+    // under 2^60 would 422 the rename below instead of reaching the refusal.
+    let ingest_hash = resp.text().await?;
     let write = sqlx::query_scalar!(
         "SELECT path FROM asset WHERE workspace_id = 'test-workspace' AND kind = 'dbt' \
            AND usage_path = 'u/test-user/ingest' AND usage_access_type = 'w'"
@@ -150,12 +154,6 @@ async fn test_dbt_materialize_target_deploy_contract(db: Pool<Postgres>) -> anyh
     // OLD path in the committed snapshot this deploy reads, while the same
     // transaction removes it — so it must not count as the producer that would
     // wake the subscription the rename adds.
-    let hash = sqlx::query_scalar!(
-        "SELECT hash FROM script WHERE workspace_id = 'test-workspace' \
-           AND path = 'u/test-user/ingest' AND archived = false"
-    )
-    .fetch_one(&db)
-    .await?;
     sqlx::query!(
         "INSERT INTO asset (workspace_id, path, kind, usage_access_type, usage_path, usage_kind)
          VALUES ('test-workspace', 'main/analytics/orders', 'dbt', 'w', 'u/test-user/project',
@@ -168,7 +166,7 @@ async fn test_dbt_materialize_target_deploy_contract(db: Pool<Postgres>) -> anyh
     )))
     .json(&json!({
         "path": "u/test-user/ingest_renamed",
-        "parent_hash": format!("{:x}", hash),
+        "parent_hash": ingest_hash,
         "summary": "",
         "description": "",
         "content": "// on dbt://main/analytics/orders\nexport async function main() {}",