fix: correct OTEL_TRACES_SAMPLER_ARG value in production environment

apps/app/.env.production

@@ -7,6 +7,6 @@ MIGRATIONS_DIR=dist/migrations/
 
 # OpenTelemetry Official Configuration
 # Environment variables starting with 'OTEL_' are automatically loaded by the OpenTelemetry SDK
-OTEL_TRACES_SAMPLER_ARG=0.1
+OTEL_TRACES_SAMPLER_ARG=0.01
 OTEL_METRIC_EXPORT_INTERVAL=300000
 OTEL_EXPORTER_OTLP_ENDPOINT="https://telemetry.growi.org"