Fix typo (open-telemetry#1450)

Author: srikanthccv

exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/__init__.py

@@ -50,7 +50,7 @@
         "service.name": "service"
     })
 
-    trace.set_tracer_provider(TracerProvider(resource=resource)))
+    trace.set_tracer_provider(TracerProvider(resource=resource))
     tracer = trace.get_tracer(__name__)
 
     otlp_exporter = OTLPSpanExporter(endpoint="localhost:55680", insecure=True)