test(plugins): include dreaming sidecar in startup expectation (#116018)

(cherry picked from commit cbb3c420db)

Co-authored-by: Peter Steinberger <steipete@gmail.com>

src/plugins/channel-plugin-ids.test.ts

@@ -2509,7 +2509,7 @@ describe("resolveGatewayStartupPluginIds", () => {
         enabledPluginIds: ["memory-lancedb"],
         memorySlot: "memory-lancedb",
       }),
-      expected: ["demo-channel", "browser", "memory-lancedb"],
+      expected: ["demo-channel", "browser", "memory-core", "memory-lancedb"],
     });
   });