Yarn missing from the aws/codebuild/amazonlinux2-aarch64-standard:3.0 image

[HarveyPeachey]

Describe the bug
Similar to #622, also reported in a comment on the same issue #622 (comment), however issue was closed.

Someone has kindly added a proposed solution using NPM instead of YUM to get past GPG key issues, along with adding Yarn to the Dockerfiles in which they're missing. Either way Yarn was available in the previous versions of these images, and we would like to update our CodeBuild environment to use Node 18, so it would be great if this was added back in as we rely on Yarn as our package manager.

Expected behavior
Yarn to be included in the Docker images.

[tarikhagustia]

up, same issue

[oginokairan]

same here

[Dylan-AWS]

Yarn is added to the 3.0 image in #697