Add aburi compiler

[likecrazy1]

compiler-explorer/compiler-explorer#8871

[mattgodbolt-molty]

Cross-linking for discoverability: the review for this whole chain is on compiler-explorer/compiler-explorer#8872, since that is where the properties live.

Relevant to this PR specifically: adding a daily build makes aburi a branch-follower, but compiler-explorer/infra#2202 declares the installable as type: s3tarballs, which is our pinned shape, and the properties in #8872 carry a fixed semver=0.1.1. If the daily build here is what we want, the infra entry needs to move to the nightly: block and the properties need isNightly=true with semver=(trunk), plus an entry in remove_old_compilers.sh. The ccc entry in this file is the template.

Alternatively, if aburi is better pinned for now, this PR would be the one to drop. Either is fine, it just needs deciding as a set. The two options are laid out in the comment on #8872.