Replace sosreport generation with libsan function

sos_generate function in libsan is not doing check for emc plugin as it is not needed and is using subprocess.communicate timeout instead of running bash timeout command, which can cause the check_all() to hang for the full 1h of specified timeout. We are also reducing the 1h to 15mins and adding plugin timeout of 5mins.

twine upload --skip-existing dist/* should help during retries, when one of the file has been uploaded successfully (no file exists errors)