Bump alpine from 3.15.0 to 3.16.2 in /.buildkite#8

dependabot[bot] wants to merge 1 commit intomainKevinGreen/agent:mainfrom

dependabot/docker/dot-buildkite/alpine-3.16.2KevinGreen/agent:dependabot/docker/dot-buildkite/alpine-3.16.2Copy head branch name to clipboard