Bitbucket Pipelines adds support for Alpine Linux

This post details the addition of support for Alpine Linux-based Docker images in Bitbucket Pipelines. Previously, Pipelines required a bash shell, which is not present in Alpine. The team modified Pipelines to fall back to `/bin/sh` when `/bin/bash` is unavailable, enabling the use of lightweight Alpine images for build containers. This change reduces download and startup times for builds.