git: openjdk/jdk13u-dev: 8254982: (tz) Upgrade time-zone data to tzdata2020c

[Yuri Nesterenko]

Changeset: 28cc6c2a
Author:    Yuri Nesterenko <yan at openjdk.org>
Date:      2020-12-03 08:55:23 +0000
URL:       https://git.openjdk.java.net/jdk13u-dev/commit/28cc6c2a

8254982: (tz) Upgrade time-zone data to tzdata2020c

Reviewed-by: dcherepanov
Backport-of: 55a0cad82751940076aa56e7644fb812d6cad3ba

! make/data/tzdata/VERSION
! make/data/tzdata/australasia
! make/data/tzdata/europe
! test/jdk/java/util/Formatter/BasicDateTime.java