[VOTE][RESULT] Release Spark 3.2.1 (RC2)

[huaxin gao]

The vote passes with 13 +1s (4 binding +1s). Thanks to all who helped with
the release! (* = binding) +1:
 - Sean Owen *
 - Mridul Muralidharan *
- Dongjoon Hyun *
- Gengliang Wang
- Michael Heuer
- Chao Sun
- Cheng Su
- John Zhuge
- Kent Yao
- Ruifeng Zheng
- XiDuo You
- Wenchen Fan *
- Yuming Wang
+0: None -1: Bjorn Jorgensen
(the issue is not a critical issue and shouldn't
block the release)