Raise TestStreamLogsToLogger log sending delay

[oleiade]

What?

This PR raises the time given to the log emitter to wait for a "flush on the network" in the cloudapi.TestStreamLogsToLogger test. Instead of 5 milliseconds, we now wait 25 milliseconds.

Why?

During the development of #3931, we discovered that the cloud API.TestStreamLogsToLogger test was very flaky on Windows. We weren't able to reproduce locally, but through experimentation, we were able to isolate and confirm that time.Sleep(5 * time.Millisecond) was likely the culprit.

Checklist

• I have performed a self-review of my code.
• I have added tests for my changes.
• I have run linter locally (make lint) and all checks pass.
• I have run tests locally (make tests) and all tests pass.
• I have commented on my code, particularly in hard-to-understand areas.

Related PR(s)/Issue(s)

#3931