internal/telemetry: TestProductChange/profiler_start,_tracer_start is flaky

[nsrip-dd]

internal/telemetry.TestProductChange/profiler_start,_tracer_start is flaky.

Example flake:

=== FAIL: internal/telemetry TestProductChange/profiler_start,_tracer_start (1.00s)
    telemetry_test.go:74: too many telemetry messages (expected 3)
    --- FAIL: TestProductChange/profiler_start,_tracer_start (1.00s)

[darccio]

@dianashevchenko I assign this to you, I think it belongs to SDK.