lint: Fix linting error in example

Author: marcbachmann

example/index.js

@@ -2,15 +2,15 @@ const {MeterProvider} = require('@opentelemetry/sdk-metrics')
 const {PrometheusExporter} = require('@opentelemetry/exporter-prometheus')
 
 const meterProvider = new MeterProvider({})
-const exporter = new PrometheusExporter({ port: 9464 }, () => {
+const exporter = new PrometheusExporter({port: 9464}, () => {
   // eslint-disable-next-line no-console
   console.log(
     `Prometheus scrape endpoint: http://localhost:%s%s`,
     PrometheusExporter.DEFAULT_OPTIONS.port,
     PrometheusExporter.DEFAULT_OPTIONS.endpoint
   )
 })
-meterProvider.addMetricReader(exporter);
+meterProvider.addMetricReader(exporter)
 
 require('opentelemetry-node-metrics')(meterProvider)