ci: Generate sourcemaps for nodes code again (no-changelog) (#14292)

packages/@n8n/nodes-langchain/tsup.config.ts

@@ -1,11 +1,10 @@
-// eslint-disable-next-line import/no-extraneous-dependencies
 import { defineConfig } from 'tsup';
 
-// eslint-disable-next-line import/no-default-export
 export default defineConfig({
 	entry: ['{credentials,nodes,test,types,utils}/**/*.ts', '!**/*.d.ts', '!**/*.test.ts'],
 	format: ['cjs'],
 	clean: true,
 	dts: false,
 	bundle: false,
+	sourcemap: true,
 });