fix: switch away from deprecated spanProcessor

This option is deprecated in favour of `spanProcessors` which accepts an
array of processors.

Author: rowanmanning

packages/opentelemetry/lib/config/tracing.js

@@ -66,7 +66,7 @@ exports.createTracingConfig = function createTracingConfig(options) {
 			enabled: false,
 			endpoint: null
 		});
-		config.spanProcessor = new NoopSpanProcessor();
+		config.spanProcessors = [new NoopSpanProcessor()];
 	}
 
 	return config;

packages/opentelemetry/test/unit/lib/config/tracing.spec.js

@@ -134,7 +134,7 @@ describe('@dotcom-reliability-kit/opentelemetry/lib/config/tracing', () => {
 
 			it('returns the configuration', () => {
 				expect(config).toEqual({
-					spanProcessor: NoopSpanProcessor.mock.instances[0]
+					spanProcessors: [NoopSpanProcessor.mock.instances[0]]
 				});
 			});
 		});