fix: Set '@typescript-eslint/return-await' rule to 'always' for node code (no-changelog) (#8363)

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

packages/@n8n/nodes-langchain/nodes/chains/ChainLLM/ChainLlm.node.ts

@@ -166,7 +166,7 @@ async function getChain(
 
 	// If there are no output parsers, create a simple LLM chain and execute the query
 	if (!outputParsers.length) {
-		return createSimpleLLMChain(context, llm, query, chatTemplate);
+		return await createSimpleLLMChain(context, llm, query, chatTemplate);
 	}
 
 	// If there's only one output parser, use it; otherwise, create a combined output parser

packages/@n8n/nodes-langchain/nodes/chains/ChainRetrievalQA/ChainRetrievalQa.node.ts

@@ -126,6 +126,6 @@ export class ChainRetrievalQa implements INodeType {
 			const response = await chain.call({ query });
 			returnData.push({ json: { response } });
 		}
-		return this.prepareOutputData(returnData);
+		return await this.prepareOutputData(returnData);
 	}
 }

packages/@n8n/nodes-langchain/nodes/chains/ChainSummarization/V1/ChainSummarizationV1.node.ts

@@ -258,6 +258,6 @@ export class ChainSummarizationV1 implements INodeType {
 			returnData.push({ json: { response } });
 		}
 
-		return this.prepareOutputData(returnData);
+		return await this.prepareOutputData(returnData);
 	}
 }

packages/@n8n/nodes-langchain/nodes/chains/ChainSummarization/V2/ChainSummarizationV2.node.ts

@@ -415,6 +415,6 @@ export class ChainSummarizationV2 implements INodeType {
 			}
 		}
 
-		return this.prepareOutputData(returnData);
+		return await this.prepareOutputData(returnData);
 	}
 }