set OTEL_METRIC_EXPORT_INTERVAL=300000 on production

apps/app/.env.production

@@ -7,4 +7,5 @@ MIGRATIONS_DIR=dist/migrations/
 
 # OpenTelemetry Configuration
 OTEL_TRACES_SAMPLER_ARG=0.1
+OTEL_METRIC_EXPORT_INTERVAL=300000
 OTEL_EXPORTER_OTLP_ENDPOINT="https://telemetry.growi.org"