Fix last-updated typo for plugins KEP
Fix last-updated typo for plugins KEP

There was a typo in the last update to the plugins KEP as part of
commit: 1d0bf29041fbe85c1a467dfbc5d45c2c571507d1
Clearly the year should have been 2019 and not 2010.

Signed-off-by: Marc Khouzam <f4a9dd7a4da9e90228a1f1935992f35508714eb1@gmail.com>

kubernetes/enhancements,kubernetes/enhancements,kubernetes/enhancements