docker: update alpine images
Created by: kevinwojo
This is the first-step to trying to address: https://github.com/sourcegraph/customer/issues/763
Test plan
Merging this PR will build new Alpine artifacts using the latest releases of our pinned versions. After this is merged, I will bump all dependent images to use the new Alpine image and
- Verify the build works on my workstation
- Kick off a
main-dry-run/<branch>
build to run automated tests against.