.deb archives are incompatible with multitool

[HunterLarco]

.deb files fall under the "archive" flow which uses bazel's native download_and_extract (code). This is a problem because bazel's implementation of download_and_extract for .deb files only decompresses the outer ar archive layer and not the inner data.tar.* files (code).

This means after download_and_extract runs on a .deb, you'll get:

debian-binary
control.tar.gz   (or .xz, .zst)
data.tar.gz      (or .xz, .zst)

...not the actual unpacked files you probably want.

As a result, multitool is incompatible with deb archives because it cannot index into data.tar.gz to locate the executable.

[markelliot]

We have platform-locked support for MacOS archives, and I’d be comfortable for us to do the same for .deb archives — want to throw up a PR that follows the existing pattern and intercepts .deb archives?