Sonobuoy v0.53.2

Shortly after releasing v0.53.1 a bug was found that impacted certified-conformance mode. Since this is an important function of Sonobuoy, we decided to release a patch for this single change. See more details here.

Changelog

981a3ff Point release for certified-conformance issue
a650400 Add documentation about issue 1388
3a522d4 Fix regression regarding certified-conformance mode