Build on all distributions

[oxr463]

• [x] Alpine
• [x] Debian
• [ ] Rocky
• [x] Ubuntu

Reference(s):

• https://docs.github.com/en/actions/using-jobs/using-a-matrix-for-your-jobs#example-using-a-single-dimension-matrix

[oxr463]

Depends on https://github.com/aad-for-linux/pam_aad/issues/2