CICD: Upgrade the rust toolchain from `1.64.0` to `1.67.0`

[yveszoundi]

Background

For a while, application components have been built with rust 1.64.0. As improvements and security issues get incorporated, it's important to stay reasonably up to date.

Request

Build projects with rust 1.67.0.

Overall changes

• [x] Update GitHub Actions workflows (livecd, main, supportimages)
• [x] Update CI/CD shell scripts
• [x] Update and publish builder container images