Add ruby

Bump sigstore/cosign-installer from 3.6.0 to 3.7.0

Replace ubuntu git with homebrew git

Set explicit tag for ubuntu image

Set explicit tag for ubuntu image

Let's definitely not install GCC through linuxbrew

Switch back to root before deleting linuxbrew user

Try to add gcc

Split steps

Include elixir

Hide secrets

Use a default user id that is likely to match the uid of the host's user

Use a default user id that is likely to match the uid of the host's user

Use a default user id that is likely to match the uid of the host's user

Fix homebrew permissions on enter

Use correct containerfile path

Use correct containerfile path

Use correct containerfile path

Update cosign key

Initial commit