Request to have a M18 patch on AWS for memory leak fix

Shell would like to request to have a M18 patch for Policy service memory leak fix. The memory leak issue with test results is documented in: #93 (closed).

As shown in the test results, the memory leak is caused by using the logging package "coloredlogs" of version 15.0.1. It is tested that using an old version 14.2 of the package fixes the memory leak. The logging package is completely removed in M20.

We would like to request to have the M18 patch available on AWS with the only change of the logging package version number.

Thanks.

cc @KellyZhou @hutchins @MonicaJohns