Expect the default manual origin on streamed mysql and postgres db spans

Under the SentryTracerProvider, streamed spans carry `sentry.origin` as a
first-class attribute including the default `manual` value, whereas the
OpenTelemetry SDK path omits the `manual` default. The `mysql` (v1) db spans
and the `pg.connect` span set no explicit origin, so they surface as
`manual` here.

Assert it for now. When those instrumentations are reworked to set an
explicit `auto.db.otel.*` origin (e.g. #21568 for mysql), these expectations
will be updated to the real origin then.

Author: andreiborza

dev-packages/node-integration-tests/suites/tracing/postgres-streamed/test.ts

@@ -73,8 +73,10 @@ const COMMON_DB_ATTRIBUTES = {
 
 /**
  * Builds the expected strict shape of a streamed postgres db span.
- * The `pg.connect` span has neither a `db.statement` nor a `sentry.origin`,
- * whereas query spans carry both.
+ * Query spans carry a `db.statement` and the `auto.db.otel.postgres` origin. The `pg.connect` span
+ * has no `db.statement`, and since the pg instrumentation sets no origin on it, it carries the
+ * default `manual` origin (written as an attribute on the streamed-span path; the non-streamed/SDK
+ * path omits the `manual` default).
  */
 function expectedDbSpan({ name, statement }: { name: string; statement?: string }): unknown {
   const attributes: Record<string, unknown> = { ...COMMON_DB_ATTRIBUTES };
@@ -88,6 +90,11 @@ function expectedDbSpan({ name, statement }: { name: string; statement?: string
       type: 'string',
       value: 'auto.db.otel.postgres',
     };
+  } else {
+    attributes['sentry.origin'] = {
+      type: 'string',
+      value: 'manual',
+    };
   }
 
   return {