Tracing Tests E2E GLOBAL-OTEL GRPC: firestore getAll() failed

Note: #7440 was also for this test, but it was closed more than 10 days ago. So, I didn't mark it flaky. ---- commit: 69dcf4714e430908ff2e4d67d115a0925e8a18ef buildURL: [Build Status](https://source.cloud.google.com/results/invocations/33fa3774-5688-47e4-8a3f-2f70d4748248), [Sponge](http://sponge2/33fa3774-5688-47e4-8a3f-2f70d4748248) status: failed