[awsemfexporter] Loosen assertion for floating point comparison. (#2826)
[awsemfexporter] Loosen assertion for floating point comparison. (#2826)

Loosen comparison of floating point a bit since sometimes it's just off

**Link to tracking Issue:** Fixes #2792 

@mxiamxia Please check to see if this delta makes any sense - I noticed the flaky behavior is still quite close to 0.01, 0.0108, so it seems like it's probably OK at a glance.

open-telemetry/opentelemetry-collector-contrib,open-telemetry/opentelemetry-collector-contrib