Task: Avoid rate limiting by batching HTTP requests

n8n workflow:
{"nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[250,300],"parameters":{},"typeVersion":1},{"name":"Customer Datastore","type":"n8n-nodes-base.n8nTrainingCustomerDatastore","position":[450,300],"parameters":{"operation":"getAllPeople","returnAll":true},"typeVersion":1},{"name":"SplitInBatches","type":"n8n-nodes-base.splitInBatches","position":[650,300],"parameters":{"options":{},"batchSize":1},"typeVersion":1},{"name":"HTTP Request","type":"n8n-nodes-base.httpRequest","position":[850,300],"parameters":{"url":"https://jsonplaceholder.typicode.com/posts","options":{},"requestMethod":"POST","bodyParametersUi":{"parameter":[{"name":"id","value":"={{$json[\"id\"]}}"},{"name":"name","value":"={{$json[\"name\"]}}"}]}},"typeVersion":1},{"name":"Wait","type":"n8n-nodes-base.wait","position":[950,100],"webhookId":"b809abfb-8e02-4b31-90b9-0005be656312","parameters":{"unit":"seconds","amount":4},"typeVersion":1},{"name":"Replace Me","type":"n8n-nodes-base.noOp","position":[1050,300],"parameters":{},"typeVersion":1}],"connections":{"Wait":{"main":[[{"node":"SplitInBatches","type":"main","index":0}]]},"HTTP Request":{"main":[[{"node":"Replace Me","type":"main","index":0},{"node":"Wait","type":"main","index":0}]]},"SplitInBatches":{"main":[[{"node":"HTTP Request","type":"main","index":0}]]},"Customer Datastore":{"main":[[{"node":"SplitInBatches","type":"main","index":0}]]},"On clicking 'execute'":{"main":[[{"node":"Customer Datastore","type":"main","index":0}]]}}}