fix(node-experimental): Ignore outgoing Sentry requests (#8994)

We do filter these out in the span processor, but we can avoid all this
work by not even generating OTEL spans at all for outgoing Sentry
requests.

packages/node-experimental/src/integrations/http.ts

@@ -93,6 +93,11 @@ export class Http implements Integration {
     this._unload = registerInstrumentations({
       instrumentations: [
         new HttpInstrumentation({
+          ignoreOutgoingRequestHook: request => {
+            const host = request.host || request.hostname;
+            return isSentryHost(host);
+          },
+
           requireParentforOutgoingSpans: true,
           requireParentforIncomingSpans: false,
           requestHook: (span, req) => {
@@ -210,3 +215,11 @@ function getHttpUrl(attributes: Attributes): string | undefined {
   const url = attributes[SemanticAttributes.HTTP_URL];
   return typeof url === 'string' ? url : undefined;
 }
+
+/**
+ * Checks whether given host points to Sentry server
+ */
+function isSentryHost(host: string | undefined): boolean {
+  const dsn = getCurrentHub().getClient()?.getDsn();
+  return dsn && host ? host.includes(dsn.host) : false;
+}