Test Engine Client v3.2.1

What's Changed

• Add agent guidance for writing changelog entries by @nprizal in #662
• Fail retried pool exec jobs when their consumed pool has failures by @nprizal in #664
• Fail when a manual selection matches none of the listed files by @meghan-kradolfer in #666
• Use selectors for manual test selection by @meghan-kradolfer in #665
• Show pool planning and lease activity in bktec pool output by @nprizal in #669
• Release 3.2.1 by @meghan-kradolfer in #668

Full Changelog: v3.2.0...v3.2.1