integration-tests: fix test_tx_not_enough_balance_must_return_error (#7500)

Commit 028fa7c: ‘default genesis minimum gas price’ changed default
minimum gas price in localnet which affected actual values in the
test.  Adjust the expected values to match thus fixing the test.

While at it, refactor the code slightly to reduce all the indentation.

Issues: #7466

Author: mina86

integration-tests/src/tests/nearcore/rpc_nodes.rs

@@ -390,30 +390,30 @@ fn test_tx_not_enough_balance_must_return_error() {
                 let res = view_client.send(GetBlock::latest()).await;
                 if let Ok(Ok(block)) = res {
                     if block.header.height > 10 {
-                        let _ = client
-                            .broadcast_tx_commit(to_base64(&bytes))
-                            .map_err(|err| {
-                                assert_eq!(
-                                    err.data.unwrap(),
-                                    serde_json::json!({"TxExecutionError": {
-                                        "InvalidTxError": {
-                                            "NotEnoughBalance": {
-                                                "signer_id": "near.0",
-                                                "balance": "950000000000000000000000000000000", // If something changes in setup just update this value
-                                                "cost": "1100000000000453060601875000000000",
-                                            }
-                                        }
-                                    }})
-                                );
-                                System::current().stop();
-                            })
-                            .map_ok(|_| panic!("Transaction must not succeed"))
-                            .await;
                         break;
                     }
                 }
                 sleep(std::time::Duration::from_millis(500)).await;
             }
+            let _ = client
+                .broadcast_tx_commit(to_base64(&bytes))
+                .map_err(|err| {
+                    assert_eq!(
+                        err.data.unwrap(),
+                        serde_json::json!({"TxExecutionError": {
+                            "InvalidTxError": {
+                                "NotEnoughBalance": {
+                                    "signer_id": "near.0",
+                                    "balance": "950000000000000000000000000000000", // If something changes in setup just update this value
+                                    "cost": "1100000000000045306060187500000000",
+                                }
+                            }
+                        }})
+                    );
+                    System::current().stop();
+                })
+                .map_ok(|_| panic!("Transaction must not succeed"))
+                .await;
         });
     });
 }