build: Update ESLint to v9 (#16639)

packages/@n8n/vitest-config/node.ts

@@ -0,0 +1,19 @@
+import { defineConfig } from 'vitest/config';
+
+export const vitestConfig = defineConfig({
+	test: {
+		silent: true,
+		globals: true,
+		environment: 'node',
+		...(process.env.COVERAGE_ENABLED === 'true'
+			? {
+					coverage: {
+						enabled: true,
+						provider: 'v8',
+						reporter: process.env.CI === 'true' ? 'cobertura' : 'text-summary',
+						all: true,
+					},
+				}
+			: {}),
+	},
+});