time: update windows zoneinfo_abbrs

time: update windows zoneinfo_abbrs

zoneinfo_abbrs hasn't been updated since go 1.14, it's time to
regenerate it.

Updates #58113

Change-Id: Ic156ae607c46f1f5a9408b1fc0b56de6c14a4ed4
Reviewed-on: https://go-review.googlesource.com/c/go/+/463838
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>