Bump to latest otel version. (#130)

Author: jsuereth

build.gradle

@@ -108,8 +108,8 @@ subprojects {
 		googleCloudVersion = '2.0.5'
 		googleTraceVersion = '2.0.0'
 		cloudMonitoringVersion = '3.0.0'
-		openTelemetryVersion = '1.7.0'
-		openTelemetryInstrumentationVersion = '1.7.0'
+		openTelemetryVersion = '1.9.0'
+		openTelemetryInstrumentationVersion = '1.9.0'
 		junitVersion = '4.13'
 		mockitoVersion = '3.5.10'
 		pubSubVersion = '1.111.2'

examples/metrics/src/main/java/com/google/cloud/opentelemetry/example/metrics/MetricsExporterExample.java

@@ -35,7 +35,9 @@ private static void setupMetricExporter() {
       METER_PROVIDER =
           SdkMeterProvider.builder()
               .registerMetricReader(
-                  PeriodicMetricReader.create(metricExporter, java.time.Duration.ofSeconds(30)))
+                  PeriodicMetricReader.builder(metricExporter)
+                      .setInterval(java.time.Duration.ofSeconds(30))
+                      .newMetricReaderFactory())
               .buildAndRegisterGlobal();
 
       METER =