Bump alpine from 3.11.0 to 3.11.2
Bump alpine from 3.11.0 to 3.11.2

Bumps alpine from 3.11.0 to 3.11.2.

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
mackerelio/mkr,mackerelio/mkr